Am 08.12.2011 02:09, schrieb Grant: >>> I've been using smtps on port 465 for sending mail but I read it's >>> deprecated so I'm trying to switch to submission port 587. >>> >>> With 465 I was using the "Connection security: SSL/TLS" setting in >>> Thunderbird, but after switching to 587 I can't send mail unless I >>> change it to STARTTLS. Can anyone explain this? >> >> yes because it is STARTTLS >> 465 is smtp over ssl and NOT STARTTLS >> >> we provide both on smtp/imap/pop3 because all of them >> having a dedicated "over ssl" port and STARTTLS over >> the standard-port if configured >> >> SMTP unencrypted / TLS: 587 >> SMTP over SSL: 465 >> POP3 unencrypted / TLS: 110 >> POP3 over SSL: 995 >> IMAP unencrypted / TLS: 143 >> IMAP over SSL: 993 > > Is IMAP over SSL on 993 deprecated in favor of using STARTTLS on 143?
i do not know, but i see no reason to disable the dedicated ssl-ports > I just read that Squirrelmail doesn't support STARTTLS, so I must > continue to use smtps 465 in order to use Squirrelmail? the main-question is why you need to encrypt sending messages from a webmail which usually does not go over the WAN
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