I've always understood that SMTP and POP3 protocols were different from SSL, and that SSL had no relationship to either.
It's best to think of them as separate layers, with SSL being an optional layer between TCP and SMTP. SSL is a protocol for secure communications, that can with any TCP-based protocol (HTTP, SMTP, POP3, etc.).
But email clients like Outlook Express include an option for using SSL with POP3 and SMTP - in the case of Outlook/Outlook Express, there is an option on the Account Properties to "Logon using Secure Password Authentication". I have always assumed that this only applied to mail hosts that were actually web servers, the way that hotmail appears to work.
Do I understand this correctly? That true POP3 and SMTP protocols/servers do not support SSL? And most importantly that it is not supported in iMail?
Actually, SMTP and POP3 can use SSL. However, they do require separate ports (port 465 for SMTP, port 995 for POP3).
IMail doesn't support this directly, but you can use an SSL tunnel (like http://www.stunnel.org ) to accomplish this.
-Scott
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