smtpsend

 $mail->smtpsend()

Sends the Mail::Internet message via SMTP to all addresses on the To, Cc, and Bcc lines. Finds the SMTP host by trying to connect first to hosts specified in $ENV{SMTPHOSTS}, then to mailhost, and then to localhost.

In a future release of Mail::Internet, smtpsend will be able to take the hostname as a parameter, as nntppost does.