Hostname does not match the server certificate

Delivered mail (63.9ms)
Job exception: hostname “” does not match the server certificate


How can I try to solve this problem?

Without looking closely at the logs I believe that you need to access the mail server by its actual name rather than the one you’re using. If you maintain that machine you can fix it.

It should announce its name when you first connect.

Or perhaps it’s certificate really is broken.

1 Like

I had the same problem but i didn’t know how to do it…
I finally solved it by deactivating starttls with

1 Like