Hi,
the problem is solved and of course it wasn't me :)
after a few debugging sessions with christoph Viethen is it offical I
behave like I should or at least my mx. Turns out the other side had a
firewall that basically blocked the traffic to my server (yeah even
whitelisting me in the begining didnt help).
Fun part, the admin on the other end admited that he wasnt able to send
mails to my mx ...
thank god for enterpise solution like watchguard ... they keep
everything away :) but after a few clicks the data began to flow!
So thanks for all the help, especially to chris (from one german to
another lol)
Regards
Markus
Am 06.04.2016 um 16:43 schrieb Markus Rosjat:
Hi Craig,
yeah my server is fine in general but maybe the other adin just has some
sort of own ways to blacklist so I might be on there list. I'll check
this too but it seems it could be a routing problem to since the other
mx sometimes talk and sometimes not (checked from other location to
connect and I was able to connect only once).
So I'll give the "nice" guy on the other and of the line a last hint and
then I just leave it because I pretty much ruled all things that could
go wrong out on my end.
Regards
Am 06.04.2016 um 16:25 schrieb Craig Skinner:
Hi Markus,
On 2016-04-06 Wed 09:29 AM |, Markus Rosjat wrote:
Okay with some help from Christoph Viethen I did some testing and
connfirmed
a few things
- sendmail -bt gave me the right order of the mx to talk to
- I couldn't connect to the server with nc
- I couldn't ping the server
- nslookup gave me the correct IP to the server
what really confuses me, and I only did that to have some other tool
checking if it can connect to the mx in question, is the fact that a
site
like mxtoolbox can talk to the mx.
They've probably got your IP address in a blacklist of some sort.
Check your mail server's IP address on http://multirbl.valli.org/lookup/
(You might need to be delisted.)
Otherwise, try traceroute (-I) from your mail server to theirs to find
where the trail ends.
Then contact them by phone/fax/freemail with your problem report.
Cheers.
--
Markus Rosjat fon: +49 351 8107223 mail: ros...@ghweb.de
G+H Webservice GbR Gorzolla, Herrmann
Königsbrücker Str. 70, 01099 Dresden
http://www.ghweb.de
fon: +49 351 8107220 fax: +49 351 8107227
Bitte prüfen Sie, ob diese Mail wirklich ausgedruckt werden muss! Before
you print it, think about your responsibility and commitment to the
ENVIRONMENT
