How to fix “none of the authentication methods supported”

If you are getting this on your email client as the one of way to fix this out you need to be sure the following settings of your EXIM server is switched to OFF

WHM –> Service Configuration –> Exim Configuration Manager –> Require clients to connect with SSL or issue the STARTTLS command before they are allowed to authenticate with the server.Read the rest

How to change a limit email message size in Exim

You may do it either via cPanel

WHM –> Service Configuration –> Exim Configuration Editor –> Advanced Editor


Using command line update /etc/exim.conf file with the following line

message_size_limit = 50M

To verify changes run the following command

exim -bP | grep message_size_limit

 … Read the rest

Exim bounced back message “retry time not reached for any host after a long failure period”

Centos's solution:

cd /var/spool/exim/db
rm -f retry retry.lockfile
rm -f wait-remote_smtp wait-remote_smtp.lockfile
service exim restart

If its still not working backup and remove all under /var/spool/exim/db folder

service exim stop
cp -rp /var/spool/exim/db /var/spool/exim/db_back
cd /var/spool/exim/db
rm -fv /var/spool/exim/db/*
service exim start
Read the rest