OS type and version: CentOS Linux 7.9.2009
Webmin version: 1.981
Virtualmin version: 6.17 Pro
I have recently started to migrate to a new server from a legacy (CentOs 5) . The reason it took so long is a long story.
Some of the clients hosted on the new server include some that still have legacy software which they will have great difficulty updating and that includes their email client. Obviously, the new server wants to only use secure methods (SSL etc) for email connecting but that change is very difficult or even impossible for some. I know it is not best practice but I need to allow plain text login for email but, of course the server will not allow that. I guess I could remove the LetsEncrypt cert. but would prefer to leave that and set up to allow plain text login. So, is it possible to leave the cert. in place but allow plain text when the email client attempt that? Effectively allowing the email client to chose whether or not to use plain text passwords.
Geez, I hope that makes sense.
Thanks for reading and any help you can offer.