Posted by Leroy Zurovec on October 28, 2021 at 06:42:04:
We have recently begun experiencing a communication error when trying to send emails via Comet to O365. The message "unexpected error 29 encountered" displays. After acknowledging the message several times, the email(s) are sent. Is this due to a change made by Microsoft to O365.
Signature Systems Email Printer Started Thu, 28 Oct 2021 06:22:20 -0600 +0100
GMT time will be used for the date
+OK CRLF will be appended to each print
>c>CONNECT smtp.office365.com 587
+OK Connected to smtp.office365.com on port 587
+OK Timeout set
220 CH2PR02CA0016.outlook.office365.com Microsoft ESMTP MAIL Service ready at Thu, 28 Oct 2021 11:24:38 +0000
250-CH2PR02CA0016.outlook.office365.com Hello [126.96.36.199]
220 2.0.0 SMTP server ready
-ERR SSL renegotiation failed
SSL Enabled for TLS re-negotiation
Unexpected error 29 encountered.
server = smtp.office365.com 587
user = firstname.lastname@example.org
password = M*********
Also, I have been notified by the company that provides our email support that within the next 9 to 12 months Microsoft will switch from legacy authentication to modern authentication for all devices. Does anyone know if Comet will handle this?
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