Version 1.613 and later of MailEnable Standard allow the customising of the welcome messages for both POP and SMTP services. This modification needs to be done through the registry, by the addition of the following registry keys:

For POP
[HKEY_LOCAL_MACHINE\SOFTWARE\Mail Enable\Mail Enable\Services\POP]
"Scramble Welcome Enabled"=dword:00000002
"Welcome Message"="Welcome to ME POP3 Server"

For SMTP
[HKEY_LOCAL_MACHINE\SOFTWARE\Mail Enable\Mail Enable\Connectors\SMTP]
"Welcome Message"="%LOCALDOMAIN% ESMTP ready at %TIME%"
"Scramble Welcome Enabled"=dword:00000002

For the SMTP Welcome Message key, use the variables %LOCALDOMAIN% and %TIME%, which are substituted with the local domain name and the time when there is a connection.