Smtp.office365.com port

Log in add your Exchange Admin Center and navigate to: Mail flow > Connectors. Create a new Connector. Click on Add a connector to create a new …

Smtp.office365.com port. Substitute smtp.office365.com with resolved IP address. Port 25 with port 587. Substitute smtp-auth-user="myname@mydomain.com" with smtp-auth-user=“mydomain.com\myname” I also tried to send message with other applications such as Windows PowerShell, APC’s PowerChute Business Edition, SMTP Diag Tools, my …

Resource account in Office 365 means the room and equipment mailbox created in Office 365 admin center. In most of cases smtp authentication issue is related to network, firewall settings, here’s a list Office 365 URLs and IP address ranges, make sure IP and traffics are not blocked. On the other hand, we shouldn’t neglect the potential ...

In today’s fast-paced business environment, efficiency and productivity are key factors in achieving success. One tool that has revolutionized the way businesses operate is Office3...In today’s interconnected world, network security is of utmost importance. One crucial aspect of network security is understanding open ports and their potential vulnerabilities. I...Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled. When you're finished, click Save changes.TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve:Feb 1, 2019 ... ... office365.com" mail.smtp.from="[email protected]" mail.smtp.username="Docs" mail.smtp.password="password" mail.smtp.port ... s...

TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve: In Office 365, click Admin, and then click Exchange to go to the Exchange admin center. In the Exchange admin center, go to Mail flow > Connectors. Check the list of connectors set up for your organization. If there is no connector listed from your organization's email server to Office 365, create one: To start the wizard, click the plus symbol +. Enter your Office 365 email address and password. For SMTP settings, use the following: SMTP Server: smtp.office365.com. Port: 587 (TLS) or 465 (SSL) Authentication: Yes, use your Office 365 credentials. Save the changes, and your email client will now be configured with the correct Office 365 SMTP settings. 13. I'm trying to read messages from my inbox, but I'm keep getting exception "MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 110; timeout -1;". I disabled my AntiVir and Firewall, but doesn't help. Below is code and console report:Nov 7, 2018 · Test whether you can connect to Office 365 from your network with following steps: ·Run the tool from the command line by typing telnet in Command Prompt. (Note: Type cmd in the Start Search box to start Command. ·Type open smtp.office365.com 587 (25). Addresses: Lists the FQDNs or wildcard domain names and IP address ranges for the endpoint set. Note that an IP address range is in CIDR format and may include many individual IP addresses in the specified network. Ports: Lists the TCP or UDP ports that are combined with listed IP addresses to form the network endpoint. Smtp.office365.com stopped working. Not sure what to do about this message.. Authentication failed. Please check your username/password. Server …Nov 7, 2018 · ·Type open smtp.office365.com 587(25). ·If you connected successfully to an Office 365 server, you will receive a response line similar to below: ... (IDP) might have blocked port 587 or 25. Correct this. so you can send email from your device. For detailed information, please refer to Fix issues with SMTP client submission. 3. Whether there ...

Server/smart host:smtp.office365.com Port:Port 587 (recommended) or port 25 TLS/StartTLS: Enabled Username/email address and password: Enter the sign-in credentials of the hosted mailbox being used ShareYour printer is connected to the server named smtp.office365.com. You entered an email address and password for Microsoft 365 or Office 365 account/mailbox …Open the Gmail app. Tap the menu icon in the upper left corner > Settings > Add account > Exchange and Microsoft 365. Important: Do NOT choose "Outlook, Hotmail, and Live" unless you want to sync email only and not calendar/contacts. Enter your full email address and tap Next. Enter your password and tap Next. Follow steps for your account type:from time to time traffic did not match this rule because firewall has problem to use/resolve all IP address that is hosted by fqdn smtp.office365.com. Look at attach: - in "smtp.office365.com-DNSresolveBySophosFW.jpg" you can see most of IP addesses resolved from fqdn smtp.office36 5.com.I use the email that came with my Office 365 subscription. But I haven't found out what information to use. So far, 'smtp.office365.com' and port 5...

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Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled. When you're finished, click Save changes. Nastavení POP, IMAP a SMTP pro Outlook.com. Pokud se pokoušíte přidat účet Outlook.com do Outlook nebo jiné poštovní aplikace, možná budete potřebovat nastavení protokolu POP, IMAP nebo SMTP. Najdete je níže nebo tak, že si je prohlédnete v nastavení Outlook.com. Outlook a Outlook.com můžou automaticky rozpoznat nastavení ... In today’s fast-paced business world, productivity is key to success. With the advent of technology, there are numerous tools available to help streamline workflows and enhance eff...If you’re looking for a fun and exciting vacation, a cruise out of Port Canaveral, FL is the perfect choice. Located on Florida’s east coast, Port Canaveral is one of the busiest c...Jan 12, 2024 ... Which SMTP port should you use — port 25, port 465, or port 587? Click to learn more about Mailgun's guide to understanding SMTP ports.Here is the example setup code: > create_smtp_creds_file( + … Hi There, I'm trying to use Blastula to send emails through my work's outlook.office365 account. I'm getting a "Timeout was reached" when sending the email.

Are you planning a cruise vacation from the beautiful city of Seattle? If so, it’s important to consider your transportation options once you arrive at the Seattle cruise port. Ren...Přihlaste se ke svému účtu pomocí aplikace Outlook Web App. Pokud potřebujete s přihlášením pomoct, potřebné informace najdete v článku Přihlášení k Outlook Web Appu. V Outlook Web Appu vyberte na panelu nástrojů Nastavení > Pošta > POP a IMAP. Název serveru POP3, IMAP4 a SMTP a další nastavení, která asi budete muset ...In today’s interconnected world, network security is of utmost importance. One crucial aspect of network security is understanding open ports and their potential vulnerabilities. I...SMTP Host: smtp.office365.com SMTP Port: 587 Encryption: TLS SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) Instead of using a …2. back to admin on office 365 >admin>exchange>mail flow>connector>add. from Myorganization's email server to office 365. put the odoo's ip address. 3.on odoo. -General set up > Uncheck "Use external authentication providers (OAuth)" - outgoing smtp. Smtp server: mx endpoint of domain which copied on step1. port: 25. Server Name outlook.office365.com smtp.office365.com Port Number 993 587 Encryption Method SSL TLS กรณีการตั้งค่าอุปกรณ์อื่น ๆ ให้สามารถส่งอีเมลด้วย office 365 เช่น Printer, Scanner, Copy Print, Fingerprint Scanner เป็นต้น ... I am using Microsoft outlook SMTP details for sending emails from my website to other users. I configured Queue/Jobs functionality to send emails. SMTP settings. MAIL_DRIVER=smtp MAIL_HOST=smtp.office365.com MAIL_PORT=587 [email protected] MAIL_PASSWORD=abcyxz45 MAIL_FROM_NAME=ABC Mailer [email protected] …Nov 7, 2018 · Test whether you can connect to Office 365 from your network with following steps: ·Run the tool from the command line by typing telnet in Command Prompt. (Note: Type cmd in the Start Search box to start Command. ·Type open smtp.office365.com 587 (25). Are you planning a trip from Port Chester, NY to Marlboro, MA? If so, you may be wondering about the best way to get there and how long it will take. Fortunately, we have all the i...Info: DEBUG SMTP: trying to connect to host "smtp.mail.gmail.com", port 587, isSSL false Severe: PWC6117: File "null" not found Here is my spring configurationI am trying to use MailKit to send an email message via "smtp.office365.com". Here is the code I'm using. using (var client = new SmtpClient(new ProtocolLogger("smtp.log"))) { client. ... (String host, Int32 port, SecureSocketOptions options, CancellationToken cancellationToken) at QuoteAndOrder.SpecialsQuoteWindow.BtnEmail_Click(Object sender ... Here are the correct settings you should use to connect Hesk to Office365.com (Microsoft 365): » Email sending. To send emails using Office365 server, enter these details: SMTP Host: smtp.office365.com SMTP Port: 587 Encryption: TLS SMTP Username: (your Office365 username) SMTP Password: (your Office365 password)

Whitelist your Server URL in the office365. Restart Postfix and Send some email to test it. Multiple Domains and Sender Based Relay PostFIX Office365. Update the main.cf configuration of Postfix to Support Sender based relay. Create a relay_by_sender file for Postfix and Keep the Mail Server (MX) details.

SMTP Server / Outgoing Mail: smtp.office365.com. Port: 587 (default) SMTP Account: your ID followed by @outlook.office365.com or [email protected]. SSL Mode: Explicit (Start TLS). Microsoft allows you to connect to their Office365 IMAP and POP3 servers using either Implicit or Explicit SSL mode. But the SMTP one does require you …SMTP Authentication You can skip this step if you know for sure that you can send emails using SMTP Authentication from your email account. ... SMTP Server address: smtp.office365.com; SMTP Port number: 587 (with TLS) Authentication: Required; Username: (your Office 365 email address) ([email protected])from time to time traffic did not match this rule because firewall has problem to use/resolve all IP address that is hosted by fqdn smtp.office365.com. Look at attach: - in "smtp.office365.com-DNSresolveBySophosFW.jpg" you can see most of IP addesses resolved from fqdn smtp.office36 5.com.To send emails using Office365 server enter these details: SMTP Host: smtp.office365.com. SMTP Port: 587. SSL Protocol: OFF. TLS Protocol: ON. SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) Note: Make sure the “from” email/account is using your Office365 email address.TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve:Log in add your Exchange Admin Center and navigate to: Mail flow > Connectors. Create a new Connector. Click on Add a connector to create a new …Apr 16, 2019 ... Port: 587; Click Continue. I know this is the same issue that an other fellow comrade had, so the post is fairly simillar. However, even with ...Whitelist your Server URL in the office365. Restart Postfix and Send some email to test it. Multiple Domains and Sender Based Relay PostFIX Office365. Update the main.cf configuration of Postfix to Support Sender based relay. Create a relay_by_sender file for Postfix and Keep the Mail Server (MX) details.

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Apr 29, 2020 ... tempPass2020! According to the settings info in my Office365 account, the settings to use are: Server name: smtp.office365.com. Port: 587In SPM/PHM configure the options in Setup > Provider > Email (for each Provider) SMTP Server Settings. SMTP Server Name: smtp.office365.com (or outlook.office365.com)SMTP Encryption: TLSSMTP Server Port: 587 (needs to be an open Outgoing port) Account Authentication. SMTP Authentication requiredAuthentication Method: …Discover if the mail servers for smtp.office365.com can be reached through a secure connection.. To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. . Futhermore we … Addresses: Lists the FQDNs or wildcard domain names and IP address ranges for the endpoint set. Note that an IP address range is in CIDR format and may include many individual IP addresses in the specified network. Ports: Lists the TCP or UDP ports that are combined with listed IP addresses to form the network endpoint. From the server and port you used, it seems that you are using SMTP client submission. Please see the Option 1 part in the link above. If you set up the mailbox on other devices or applications, please follow up the instructions in the link above and set up the account in Outlook client .Jul 8, 2021 ... SMTP Server: smtp.office365.com. Port: 587. Username: [email protected]. User SSL/TLS: Always. Last Test Result. (external@email ...Jan 19, 2024 · The allowed Port Number depends on the network environment. If the machine fails to connect to the server, check with the administrator of the network that the information entered is correct. 6. Press [SMTP Authentication]. Apr 3, 2023 · 虽然不再受支持,但服务器仍允许客户端在连接到 SMTP AUTH 终结点时使用旧版 TLS, (smtp.office365.com) 。 在 2022 年,我们计划完全禁用这些较旧的 TLS 版本,以保护我们的客户并满足这些安全性和合规性要求。 但是,由于大量使用,我们创建 ... POP-, IMAP- og SMTP-indstillinger for Outlook.com. Hvis du forsøger at føje din Outlook.com -konto til Outlook eller en anden mailapp, skal du muligvis bruge POP-, IMAP- eller SMTP-indstillingerne. Du kan finde dem nedenfor eller ved at få dem vist i dine Outlook.com-indstillinger. Outlook og Outlook.com kan muligvis automatisk registrere ... If you’re looking for a fun and exciting vacation, a cruise out of Port Canaveral, FL is the perfect choice. Located on Florida’s east coast, Port Canaveral is one of the busiest c...May 17, 2022 ... ... Port In Outlook and Office 365. YouTube Channels Travel Vlog Channel https://www.youtube.com/c/Majhopravas?sub_confirmation=1 Life Goal ...I am searching for days to find out how can I set Office365 SMTP server in my VB6 application. My code is working properly with port 465 and other mail servers. BUT it is not working with port 587 and smtp.office365.com . Is there any way I … ….

4 Answers. On iDRAC 9 firmware version 4.40 and newer, you can now configure a custom sender address and SMTP connection encryption in the web GUI. The settings required for Office 365 are as follows: SMTP server settings: smtp.office365.com, port 587, STARTTLS. Sender Email Address / Username: Same email address in both …May 23, 2022 · 25端口(SMTP):25端口为SMTP(Simple Mail Transfer Protocol,简单邮件传输协议)服务所开放的,是用于发送邮件。如今绝大多数邮件服务器都使用该协议。当你给别人发送邮件时,你的机器的某个动态端口(大于1024)就会与邮件服务器的25号端口建立一个连接,你发送的邮件就会通过这个连接传送到邮件 ...Dec 18, 2018 · The message could not be sent because connecting to Outgoing server (SMTP) smtp.office365.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. My current SMTP settings are: Server Name: smtp.office365.com. Port: 587.The Worldwide endpoint is smtp.office365.com. The Microsoft 365 operated by 21 Vianet endpoint is smtp-legacy.partner.outlook.cn. Backup proxy server 1. ... Amazon and Azure archiver appliances. For backup proxy servers, these ports are required to access Microsoft 365 organizations and communicate with object storage; for Amazon and Azure ...Nov 22, 2016 · Actually our company changed SMTP server and blocked all open default port which wasn't allowing us to send a mail. We got new configuration and now it's working fine. 1) SMTP Server: ourSMTP.smtp.com. 2) Port: our_port_no. 3) No Authentication required. 4) SSL Unchecked. Share. Improve this answer. Follow. Jul 1, 2022 · Configuring for IMAP/SMTP with OAuth2 (non-Outlook mail clients) Use the following screenshot as guidance for configuring your IMAP/SMTP client with OAuth2. The example is for Thunderbird V78.4. Additional Configuration Details. For assistance configuring your email clients, reference the following guides: Apple Mail. Apple iPhone Whitelist your Server URL in the office365. Restart Postfix and Send some email to test it. Multiple Domains and Sender Based Relay PostFIX Office365. Update the main.cf configuration of Postfix to Support Sender based relay. Create a relay_by_sender file for Postfix and Keep the Mail Server (MX) details. Office 365 SMTP settings. Server Address: smtp.office365.com. Username: Your Office 365 Address (e.g. [email protected]) Password: Your Office 365 Password. Port Number: 587 (With TLS) Authentication: Required. Sending Limits: 10,000 Emails a day. To know more about Office 365 SMTP settings, Click here. I'm having trouble configuring the SMTP settings for sending mail using javax.mail (1.4.4) through Office365, so I thought I'd post the properties here for others.The USB ports on the front panel of a PlayStation 2 are used to connect peripheral accessories to the console to enhance its functionality. Just like with a computer, hard drives c... Smtp.office365.com port, According to this : "Because my code works well on my two colleagues' PC. (telnet smtp.gmail.com 587) command works well" i assume that you already authorize access through less secure app in the gmail account you're using, and the problem is related to your own computer., From the server and port you used, it seems that you are using SMTP client submission. Please see the Option 1 part in the link above. If you set up the mailbox on other devices or applications, please follow up the instructions in the link above and set up the account in Outlook client ., Steps to do before running your program: Enable “App password” a. Goto to myaccounts.google.com b. Select “Security” c. Enable 2 step verification (if not done earlier) d. Click on 2 step verification again e. Goto “App password” (At the bottom of page) f. Select app : Other and Generate - accordingly use app password., 16 hours ago · Enable SMTP AUTH for specific mailboxes. Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled., > Server: outlook.office365.com > Port: 993 > Encryption: SSL/TLS SMTP Settings > Server: smtp.office365.com > Port: 587 > Encryption: STARTTLS You may refer on the following articles for this: Set up an Outlook account on the iOS Mail app, การตั้งค่า POP, IMAP และ SMTP สำหรับ Outlook.com. ถ้าคุณกําลังพยายามเพิ่มบัญชี Outlook.com ของคุณไปยัง Outlook หรือแอปจดหมายอื่น คุณอาจต้องใช้การตั้ง ... , Aug 25, 2014 · Everyone is familiar with sending a test email through an SMTP server using telnet. However Office 365 requires authenticating the user account and does not play fair the traditional way. Use the following information for sending a test email through Office 365 using Powershell. Step 1: Run Powershell Powershell is available with Windows XP …, In today’s fast-paced work environment, effective collaboration and seamless communication are essential for the success of any organization. Office365 offers a suite of powerful t..., Ha Outlook.com fiókját szeretné hozzáadni Outlook vagy egy másik levelezőalkalmazáshoz, szükség lehet a POP-, IMAP- vagy SMTP-beállításokra. Az alábbiakban vagy a Outlook.com beállításai között tekintheti meg őket. Outlook és Outlook.com képes automatikusan észlelni a fiók postaláda-beállításait, de más, nem ..., TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve:, หากคุณต้องการใช้งานอีเมล Microsoft 365 ผ่านโปรแกรมอีเมลคลายเอ็นต์ เช่น Outlook, Thunderbird, Mail App หรืออื่นๆ คุณจำเป็นต้องทราบการตั้งค่า POP, IMAP และ SMTP สำหรับบัญชีอีเมล ... , Dec 6, 2021 · In Gmail app > Add new account > Select Exchange and Office 365. Enter your email address > Select Set up manually (this will be clickable once you enter email address) Enter your: Password. Client certificate as is (none) Domain\Username as is (email address) Server updated to outlook.office365.com. Port as is (443), private static final String SERVIDOR_SMTP = "outlook.office365.com"; private static final int PORTA_SERVIDOR_SMTP = 587; private static final String CONTA_PADRAO = " ... Could not connect to SMTP host: smtp.office365.com, port: 587; nested exception is: java.net.SocketException: Permission denied: connect – rama. …, Якщо ви намагаєтеся додати обліковий запис Outlook.com до Outlook або іншої поштової програми, можливо, знадобляться настройки POP, IMAP або SMTP. Їх можна знайти нижче або переглянути в настройках Outlook.com ..., May 13, 2022 · smtp.office365.com – Failed to get initial SMTP Response. If something on the client-side is blocking communications, such as a hardware or software firewall, or anti-virus, then it may be that a TLS connection is established, but then trying to read the 1st message from the server gets blocked. When this happens, the contents of the ... , Aug 12, 2013 ... I have set the expected values given to me by Office 365: SMTP setting Server name: smtp.office365.com Port: 587 Encryption method: TLS in ..., Here are the correct settings you should use to connect Hesk to Office365.com (Microsoft 365): » Email sending. To send emails using Office365 server, enter these details: SMTP Host: smtp.office365.com SMTP Port: 587 Encryption: TLS SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) , Current settings.. Server And Port Hostname or IP address: smtp.office365.com. Port number of the SMTP server: 587. Encryption Protocol to use for data encryption: TLSv1.2 (I've also tried all others) Connection Timeout: 5 seconds (also tried 10 seconds), Info: DEBUG SMTP: trying to connect to host "smtp.mail.gmail.com", port 587, isSSL false Severe: PWC6117: File "null" not found Here is my spring configuration, Jul 13, 2016 ... I cannot find a way to send emails or campaigns using smtp.office365.com Is there a plan to fix this ... smtp.office365.com ... Port: 587. Activate ..., Using CDO/SMTP/TLS in VB6 to send email smtp.office365.com mail server 0 Cannot send TLS 1.2 with Xamarin.Forms and VisualStudio 2017, Oct 8, 2020 · The same SMTP problem is back few days ago for me. It worked again with the following SMTP setting at Thunderbird : Server: smtp.office365.com Port: 587 Security: STARTTLS Authentication method: OAuth2 User: (my full email address) My prevous configuration was « Authentication method: Normal passord ». , Apr 18, 2019 ... Hi all, we got an authentication error by sending email. We use O365 in Azure, smtp.office365.com port:587., Aug 25, 2014 · Everyone is familiar with sending a test email through an SMTP server using telnet. However Office 365 requires authenticating the user account and does not play fair the traditional way. Use the following information for sending a test email through Office 365 using Powershell. Step 1: Run Powershell Powershell is available with Windows XP onwards. Step 2: Enter your Office 365 User Details ... , Nov 20, 2019 ... I configured the email settings - Host - smtp.office365.com, Port - 587, Encry - TLS and Auth - Login, when I click on Test connection, it gives ..., from time to time traffic did not match this rule because firewall has problem to use/resolve all IP address that is hosted by fqdn smtp.office365.com. Look at attach: - in "smtp.office365.com-DNSresolveBySophosFW.jpg" you can see most of IP addesses resolved from fqdn smtp.office36 5.com., Jan 24, 2024 · Input the desired display name for email recipients in Wordpress. Continuing to the subsequent step, specify smtp.office365.com as your SMTP host, advancing to the connectivity assessment conducted by Post SMTP.. This evaluation aims to identify the most effective outgoing IMAP server settings and will present the recommended …, SMTP 主机名 发送邮件服务器名称。 通常为 smtp.yourprovider.com smtp.office365.com SMTP 用户名 想要设置的电子邮件地址。 [email protected], SMTP 密码 与你的电子邮件帐户相关联的密码。-----SSL? 你是否使用 SSL 加密电子邮件? 已启用, Enter your Office 365 email address and password. For SMTP settings, use the following: SMTP Server: smtp.office365.com. Port: 587 (TLS) or 465 (SSL) Authentication: Yes, use your Office 365 credentials. Save the changes, and your email client will now be configured with the correct Office 365 SMTP settings. 13. , Sep 7, 2022 ... ... Port: 587. ... office365.com, your sign username, email address ... Office 365 SMTP Relay Options Explained || Microsoft 365 SMTP Relay- Full Detail ..., I am not able to send email with attachment using smtp.office365.com (without attachment its working), but with gmail its working. javax.mail.MessagingException: Could not connect to SMTP host: smtp.office365.com, port: 587; nested exception is: javax.net.ssl.SSLException: Unsupported or unrecognized SSL message., nodemailer 2.x configuration for Office 365 direct send. I'm using nodemailer v2.4.2 with node.js v4.4.7 and I want to send emails from my server via my Office 365 SMTP mail server. I'm using the smtpTransport v2.5.0 with this configuration: host: 'smtp.office365.com', port: 25, // …, SMTP Address: smtp.office365.com: SMTP Port: 587 (with TLS) Authentication: Required: SSL Protocol: Off: TLS Protocol: On: …