Got a client who is using Outlook 2003 and they keep getting prompted for the password. It works for a while and then promts for the password again. They are getting prompted several times a day. We have verified the connection setings Also doubt it is a connection setting due to it being intermiten...

I just ran into this issue and found a solution that worked. I edited the /opt/zimbra/postfix/conf/master.cf fileand uncommented the following line:#submission inet n - n - - smtpdthen retart the smtp serverThis tells the zimbra server to listen on port 587 (Authenticated smtp) and it worked fine he...