Mailer issues
The problem rose again with the error(Domain of sender address z.erp@zantel.co.tz fail to resolve) . Last time i changed IMAP account and IMAP server(from z.erp@zantel.co.tz on exchange.zanntel.com to z.erp@zantel.com on mx1.zantel.com ) and the things was fine but the problem was on INBOUND process(Response via email notification) until i decided to return on initial IMAP account and server(z.erp@zantel.co.tz on exchange.zanntel.com) and by this time was working fine i don knw what was happening.
From 18th ,Mailer stop to send email Notifications with the same error. Today i changed it to the old one(