Zimbra and Thunderbird port
Posted: Thu Feb 06, 2020 3:12 pm
Why can't I send emails using thunderbird when I connect to my zimbra server using the port 587?? but if I change it to port 25 it works. Someone knows? I want to use port 587
Hi,
What configurations have you tried with port 587? This port requires authentication and TLS.
Best regards.