------------ Original Message ------------ > Date: Friday, March 27, 2015 08:13:53 -0700 > From: Hanby Family <[email protected]> > > I have a firewall installed on my Android phone and it has today > started reporting that K-9 mail is trying to access sendgrid.net > and secureserver.net. > > I understand that these are 'mail delivery partners' ?? > > I don't understand why my mail isn't going on port 443 just to my > domain's mailservers, which then use SMTP to send the mail > themselves? > > And why is the traffic to these two domains on port 80, not port > 443 :-O ?? > > Any answers much appreciated. > > Regards, > R
Ports 80 and 443 are http/s, not mail. Mail-related ports are 110/995 - pop3/s, 143/993 - imap/s for retrieval and 465/587 (and potentially 25) for sending. That said, if you open a message and load the graphics you'll be directed to some http/s server, with the request coming, I assume, from K-9. I just checked my DNS server logs going back a month, (this is the server that my mobile devices use when not being "mobile"), and find no suspicious lookups for either sendgrid.net or secureserver.net. There may be something odd going on, but I'm not seeing it. - Richard -- -- You received this message because you are subscribed to the K-9 Mail Users List. To post to this group, send email to [email protected] To unsubscribe, email [email protected] To report an issue with K-9 Mail, visit http://code.google.com/p/k9mail/issues/list For more options, visit this group at http://groups.google.com/group/k-9-mail --- You received this message because you are subscribed to the Google Groups "K-9 Mail" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
