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sendmail reject address - why

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goo-...@ciach.net

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Jun 22, 2016, 6:13:21 AM6/22/16
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Hi,
I have something like that in my log:
Jun 21 16:44:53 poczta sendmail[13644]: u5LEipaQ013644: ruleset=check_mail, arg1=<bounces+922094-a738-aciach=mydom...@email.wetransfer.com>, relay=o2.email.wetransfer.com [192.254.118.54], reject=550 5.7.1 <bounces+922094-a738-aciach=mydom...@email.wetransfer.com>... Access denied 2
Jun 21 16:44:54 poczta sendmail[13644]: u5LEipaQ013644: from=<bounces+922094-a738-aciach=mydom...@email.wetransfer.com>, size=0, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=o2.email.wetransfer.com [192.254.118.54]

1. How can I check, what is wrong with sender address an why it is rejected?

2. More important - what should I change in sendmail configuration to accept addresses like above?

Andrzej

Claus Aßmann

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Jun 22, 2016, 9:30:03 AM6/22/16
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Andrzej wrote:

> Jun 21 16:44:53 poczta sendmail[13644]: u5LEipaQ013644: ruleset=check_mail,
> arg1=<bounces+922094-a738-aciach=mydom...@email.wetransfer.com>, relay=o2.email.wetransfer.com
> [192.254.118.54], reject=550 5.7.1 <bounces+922094-a738-aciach=mydom...@email.wetransfer.com>... Access
> denied 2

Is that "2" really in the log line?

> 1. How can I check, what is wrong with sender address an why it is rejected?

Use sendmail -bt
see the man page, help, or
http://www.sendmail.org/~ca/email/chk-dbg.html

> 2. More important - what should I change in sendmail configuration to accept addresses like above?

Depends on what you find via the testing, but check your access map
for matching entries.

--
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reply to top-postings which include a full copy of the previous
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is too lazy to trim his article, and it's wasting the time of all readers.

goo-...@ciach.net

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Jun 23, 2016, 7:09:42 AM6/23/16
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W dniu środa, 22 czerwca 2016 15:30:03 UTC+2 użytkownik Claus Aßmann napisał:
> Andrzej wrote:
>
> > Jun 21 16:44:53 poczta sendmail[13644]: u5LEipaQ013644: ruleset=check_mail,
> > arg1=<bounces+922094-a738-aciach=mydom...@email.wetransfer.com>, relay=o2.email.wetransfer.com
> > [192.254.118.54], reject=550 5.7.1 <bounces+922094-a738-aciach=mydom...@email.wetransfer.com>... Access
> > denied 2
>
> Is that "2" really in the log line?
Yes - I added it intentionally to be sure in which rule the problem is (just for time of tests)
>
> > 1. How can I check, what is wrong with sender address an why it is rejected?
>
> Use sendmail -bt
> see the man page, help, or
> http://www.sendmail.org/~ca/email/chk-dbg.html
OK - I will check that

Claus Aßmann

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Jun 29, 2016, 3:40:03 PM6/29/16
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wrote:

> > > 1. How can I check, what is wrong with sender address an why it is rejected?

> > Use sendmail -bt

> OK - I will check that

So, what did you find?

goo-...@ciach.net

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Jun 30, 2016, 5:32:31 AM6/30/16
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W dniu środa, 29 czerwca 2016 21:40:03 UTC+2 użytkownik Claus Aßmann napisał:
> wrote:
>
> > > > 1. How can I check, what is wrong with sender address an why it is rejected?
>
> > > Use sendmail -bt
>
> > OK - I will check that
>
> So, what did you find?
I did not noticed earlier, that email.wetransfer.com is canonical name = sendgrid.net
And sendgrid.net was blocked.

Thank you for your help.

Andrzej Ciach
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