Hello. So now I know that Squirrelmail does not work with starttls on port 25. I’ve changed $smtpPort value to 465 and maintained $use_smtp_tls = true and $smtp_auth_mech = ‘login’ , but a network traffic inspection shows my web server always connecting to the smtp server using port 25. How can I set it to use 465 so that users can authenticate to send e-mails and I can get rid of the RELAY rule on the smtp server ? Thanks and regards. Os melhores cumprimentos David Alexandre M. de Carvalho ═══════════════════ Especialista de Informática Departamento de Informática Universidade da Beira Interior ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users