What port(s) are you seeing? So that we can look at the DNS, what is
your outgoing mail server?
- Richard
------------ Original Message ------------
> Date: Monday, March 30, 2015 03:55:43 -0700
> From: Hanby Family <[email protected]>
>
> Yes, sorry of course the mail protocol isn't using those ports - I
> wasn't thinking straight :-s
>
> The question still arises, why is k-9 mail accessing these servers?
>
> -Richard
>
> On Friday, March 27, 2015 at 6:35:48 PM UTC, Richard wrote:
>>
>>
>>
>> ------------ Original Message ------------
>> > Date: Friday, March 27, 2015 08:13:53 -0700
>> > From: Hanby Family <[email protected] <javascript:>>
>> >
>> > 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
>>
>>
>>
------------ End Original Message ------------
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