The RETR command did not succeed. Error retrieving a messsage .Mail server outlook.office365.com responded:Server Unavailable.21
While opening thunder bird this below error " The RETR command did not succeed " coming so user not able to work please suggest
The RETR command did not succeed. Error retrieving a messsage .Mail server outlook.office365.com responded:Server Unavailable.21
Összes válasz (1)
I think this is a server error. Try logging on to web account and check to see if any malformed messaged are there and delete them.