[Alpine-info] bouncing emails changes From and Date headers
jbastian at redhat.com
Mon Apr 12 07:50:10 PDT 2010
On Sun, 11 Apr 2010, James Pittman wrote:
> Could it be your ISP forcing an SMTP server on one of you? I think I've
> heard of this in the past, whereby any connection on the SMTP port is
> redirected to the ISP's server, regardless of what address you specify.
Interesting idea, but no, we're both using SMTP with SUBMIT (smtp auth on
port 587, see RFC 2476) over TLS. From .pinerc
# List of SMTP servers for sending mail. If blank: Unix Pine uses sendmail.
smtp-server=smtp.gmail.com/submit/tls/user=my_name_here at gmail.com
This means (1) using port 587 instead of port 25, (2) authenticating to
the SMTP server with name and password, and (3) TLS certificates verifying
the identify of the SMTP server and encrypting the traffic.
I would be very concerned if my ISP is doing a man-in-the-middle attack
on that. :)
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