Hi Andreas, I've had some users report this as well. Previously, they were getting this same error when receiving mail; upgrading to Dovecot (from Courier) resolved that. Now the issue seems to also exist with qmail-smtp.
I'm not sure what is broken, because connections to port 587 support TLSv1.2 with modern ciphers, and I get a decent score with www.immuniweb.com. For the moment, I've simply offered an alternative SMTP server for users who are having trouble sending (which, for now, is limited to just a few people in one office). Anyone have suggestions why some versions of Outlook on Windows can't establish encrypted connection to qmail-smtp? Quinn On 24 Oct 2022, at 6:12, Andreas wrote: > Hi list, > > I have read the discussion and fix. > I have installed dovecot--2.3.19.1-2.x86_64 and > dovecot-mysql-2.3.19.1-2.x86_64 > on RockyLinux 8 > > Since last update on Microsoft and Outlook they cannot send emails. > > In the log I dont see any error, on the client: > Task "myuser@... - Sending: reported error (Ox800CCC1A) : > 'Your server does not support the connection encryption type you have > specified. Try changing the encryption method. Contact your mail server > administrator or internet service provider (ISP) for additional assistance.' > > > Do you have any advice how I could change the server settings? > > Andreas > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
