# Email Notification SMTP Issues **URL:** \ **Category:** Ignition\ **Tags:** ignition81\ **Created:** [January 9, 2024, 11:28am UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961 "2024-01-09T11:28:26Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Nicholas\_Welch](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@Nicholas\_Welch](https://forum.inductiveautomation.com/u/Nicholas_Welch)\ **Post date:** [January 9, 2024, 11:28am UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/1 "2024-01-09T11:28:26Z")
I'm getting this error when I try to execute a test on my Alarm Notification ![Ignition](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/1/21ab9d87bb68909d7ee626be3b52696356400871.png) Any Insight on this issue would be a great help. Thanks ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [January 9, 2024, 12:53pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/2 "2024-01-09T12:53:29Z")
Completely unreadable. Post the error as text, using the "preformatted text" button in the forum comment editor. ---
**Author:** ![Nicholas\_Welch](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@Nicholas\_Welch](https://forum.inductiveautomation.com/u/Nicholas_Welch)\ **Post date:** [January 9, 2024, 1:23pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/3 "2024-01-09T13:23:33Z")
```auto [hostname=smtp.office365.com,port=587] Error sending message to user 'usr-prov:default:/usr:maint'. Remaining retries=0 javax.mail.MessagingException: Could not connect to SMTP host: smtp.office365.com, port: 587 at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2211) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:740) at javax.mail.Service.connect(Service.java:388) at javax.mail.Service.connect(Service.java:246) at javax.mail.Service.connect(Service.java:195) at javax.mail.Transport.send0(Transport.java:254) at javax.mail.Transport.send(Transport.java:124) at com.inductiveautomation.ignition.alarming.notification.email.EmailNotificationProfile$EmailTask.sendMessage(EmailNotificationProfile.java:819) at com.inductiveautomation.ignition.alarming.notification.email.EmailNotificationProfile$EmailTask.buildAndMaybeSendMessage(EmailNotificationProfile.java:807) at com.inductiveautomation.ignition.alarming.notification.email.EmailNotificationProfile$EmailTask.run(EmailNotificationProfile.java:721) at com.inductiveautomation.ignition.alarming.notification.email.EmailNotificationProfile.lambda$sendNotification$0(EmailNotificationProfile.java:535) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: javax.net.ssl.SSLException: Unsupported or unrecognized SSL message at java.base/sun.security.ssl.SSLSocketInputRecord.handleUnknownRecord(Unknown Source) at java.base/sun.security.ssl.SSLSocketInputRecord.decode(Unknown Source) at java.base/sun.security.ssl.SSLTransport.decode(Unknown Source) at java.base/sun.security.ssl.SSLSocketImpl.decode(Unknown Source) at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source) at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:626) at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:400) at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238) at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2175) ... 13 common frames omitted ``` ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [January 9, 2024, 1:36pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/4 "2024-01-09T13:36:34Z")
> [@Nicholas\_Welch](#): > > `Caused by: javax.net.ssl.SSLException: Unsupported or unrecognized SSL message` ```auto Caused by: javax.net.ssl.SSLException: Unsupported or unrecognized SSL message ``` I would guess that Microsoft has tightened their security in the new year. What version of Ignition is this? ---
**Author:** ![Nicholas\_Welch](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@Nicholas\_Welch](https://forum.inductiveautomation.com/u/Nicholas_Welch)\ **Post date:** [January 9, 2024, 1:47pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/5 "2024-01-09T13:47:52Z")
8.1.25 ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [January 9, 2024, 1:49pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/6 "2024-01-09T13:49:48Z")
I think this is usually an incorrect combination of the port and SSL / StartTLS settings. Try both ports 465 and 587 with all combinations of enabling SSL and StartTLS. ---
**Author:** ![justin.brzozoski](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/justin.brzozoski/32/13452_2.png) [@justin.brzozoski](https://forum.inductiveautomation.com/u/justin.brzozoski)\ **Post date:** [January 9, 2024, 3:34pm UTC](https://forum.inductiveautomation.com/t/email-notification-smtp-issues/83961/7 "2024-01-09T15:34:12Z")
FWIW, we're using Office365 web email with this combination just fine: ![outlook_setup](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/f/ff5df7f490c0a2f2aa2dafb24b67f73b2758b4d7.png)