unshift @{$Mail::Sendmail::mailcfg{'smtp'}} , 'my.mail.server';

##</code><code>##

connect to localhost failed (Unknown error) no (more) retries!connect to my.mail.server fai
led (Unknown error)
connect to my.mail.server failed
connect to localhost failed (Unknown error)
connect to localhost failed
connect to localhost failed (Unknown error) no (more) retries!