Router: No messages transferred to ... via SMTP: SSL Certificate is Invalid

HCL Domino Domino Forum
1

We are getting the following error message when trying to transfer email to a specific domain:

12/20/2017 09:34:02 AM Router: No messages transferred to DFPS.STATE.TX.US (host esa02mx.hhs.STATE.TX.US) via SMTP: SSL Certificate is Invalid.
12/20/2017 09:34:02 AM Router: Failed to connect to SMTP host DFPS.STATE.TX.US because ¦¦Å¦ïÇ°i¦Þz9aÁ§-+4@+¦VÓµ·mZ¦â¦gb¦ñl¿}?

Is there anyway to avoid this error? Other email servers can send email to this domain without problems.

2

Subject: Selfsigned and wrong hostname

They use a selfsigned cert, hostname mismatch and tls only. 3 possible reasons.

https://ssl-tools.net/mailservers/dfps.state.tx.us https://ssl-tools.net/mailservers/dfps.state.tx.us

3

Subject: RouterFallbackNonTLS=1

This ini parm solved my problem:

RouterFallbackNonTLS=1

http://www-01.ibm.com/support/docview.wss?uid=swg21570039 http://www-01.ibm.com/support/docview.wss?uid=swg21570039

Darren Duke Blog Zone https://blog.darrenduke.net/Darren/DDBZ.nsf/dx/tls-1.2-in-domino-and-the-settings-i-use.htm