Hi Darrel, The SMTP server you are using has a broken STARTTLS implementation, or it is behind a broken firewall that mis-handles SMTP. Another possibility is anti-spam software that does not handle TLS correctly. Try to set $smptauthlevel = 0; or $smtpauthlevel = 1; in pskmailrc.pl. If you cannot get it to work, a gmail smtp server works fine with the pskmail server, you could try that... In that case $smtpauthlevel =2; 73, Rein PA0R >Whenever I try to send an email through our server it returns an error and >will not send the email. The message is: Receiving email >Error sending mail : Invalid response for STARTTLS: 502 Error: command not >implemented > at /usr/local/share/pskmail_server/rflinkserver.pl line 3352 > > >What is causing this problem? > >Darrel, VE7CUS >