Internal Server Error messages nginx proxy POP/IMAP/SMTP nginx-forum at
Thu Mar 12 23:25:09 UTC 2015

Hi there, 
I have decided delete all authetication part from the email process auth,
and  first made the simplest configuration, so i have configured nginx based
on the the examples provided into wiki nginx page and just modified it to
get an IP address and hostname to redirect my users  to my backends mail
servers, Unfortunadly  I got another   2 error messages :

 upstream timed out (110: Connection timed out) while connecting to
upstream, client:, server:, login:
"ricardo.carrillo", upstream:


client was rejected: "MAIL FROM: <ricardo.carrillo at>__" while in auth
state, client:, server:

Does anybody knows what does those errors mean?

Posted at Nginx Forum:,257206,257230#msg-257230

More information about the nginx mailing list