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I've decided that I'm going to open up my mail server to the outside world, and so it will need a bit of securing. I'm running Dovecot and Exim4. I have been through the Dovecot stuff and I think I've got IMAPS sorted, but I'm struggling with secure SMTP. I have read /usr/share/doc/exim4-base/README.Debian and done what I think needed doing, and when I run nmap against my server, it now advertises SMTPS on :465, but I cannae get it to actually work (I think). I'm testing it by changing my Thunderbird settings (in a separate profile) and trying to send a message to a GMail account I have. When using "SSL", I get the following unhelpful error message on Thunderbird: The server may be unavailable or is refusing SMTP connections. When using "TLS", I get the more helpful error: Unable to connect to SMTP server "fileserver" via STARTTLS since it doesn't offer STARTTLS in EHLO response. I don't really know what it is I'm supposed to be doing to get my SMTP server to accept encrypted connections and use some form of non-plain-text authentication. There's no way I am forwarding any mail ports to my server until I get this sorted! Any input would be very greatly appreciated as I'm a bit out of my depth here... but that's what learning is about! :D Cheers. Grant. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html