SnappyMail: Can't connect to server

I can’t log into snappy mail, I got this error: Can’t connect to server
I have had this problem since today, previously everything was great

Welcome and Happy New Year @ayyoubdz

Go to https://SERVER_URL:8090/snappymail/?admin#/domains and setup the SMTP connection for all domains by clicking on the asterisk (*) you see on list of domains

Post a screenshot here if a test fails

this is what I get

Can you try run an upgrade and reboot the server. See if this fixes your issue. This advice is in reference to Can't connect to server snappymail error message - #4 by ckjm

What credentials are needed to login here

Your admin password is here /usr/local/lscp/cyberpanel/rainloop/data/_data_/_default_/admin_password.txt