From: "Theodore Ts'o" <tytso@mit.edu>
To: Eric D <eric.decosta@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: mail from mathworks.com domain is rejected
Date: Thu, 4 Aug 2022 12:21:47 -0400 [thread overview]
Message-ID: <YuvyGzevAMWyd0K5@mit.edu> (raw)
In-Reply-To: <CAMxJVdH6_CAhe1ToJnFB55dQAJd81HD0vUDgZ_1Ub=9QKJbHjg@mail.gmail.com>
On Thu, Aug 04, 2022 at 11:57:40AM -0400, Eric D wrote:
> I and a colleague of mine have been unable to send email to this list
> from our work accounts; the mail server always responds with the
> following:
>
> git@vger.kernel.org
> 23.128.96.18
> Remote Server returned '554 5.7.1 <23.128.96.18 #5.7.1 smtp; 553 5.7.1
> Hello [23.128.96.19], for your MAIL FROM address
> <edecosta@mathworks.com> policy analysis reported: Your address is not
> liked source for email>'
>
> Can this be corrected? Is there any additional information that I can provide?
Mathworks.com has the following SPF settings (found by running "dig -t
TXT mathworks.com"):
mathworks.com. 900 IN TXT "v=spf1 ip4:144.212.130.25 ip4:144.212.244.25 include:spf-misc.mathworks.com include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.salesforce.com ?exists:%{i}._spf.mathworks.com ~all"
The ip address 23.128.96.19 reverse resolves to lindbergh.monkeyblade.net.
At a guess, after expanding the indlude: fields for the SPF record for
mathworks.com, it looks like individual IP addresses that are manually
added by the mathworks.com postmaster are stored in
spf-misc.mathworks.com and spf-misc1.mathworks.com. For example:
% dig -t TXT spf-misc.mathworks.com
...
spf-misc.mathworks.com. 900 IN TXT "v=spf1 ip4:144.212.128.24/29 ip4:142.0.160.0/20 ip4:144.212.100.42/32 ip4:208.185.229.0/24 ip4:208.185.235.0/24 ip4:12.130.57.0/24 include:spf-misc1.mathworks.com ~all"
...
So it looks like you and your colleague need to ask your work's mail
admins to add the IP addresses of the hosts from which you send e-mail
to mathworks.com's SPF allow list. Alternatively, they may tell you
to reconfigure your mailers to use one of mathworks.com's mail
submission servers.
Cheers,
- Ted
prev parent reply other threads:[~2022-08-04 16:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-04 15:57 mail from mathworks.com domain is rejected Eric D
2022-08-04 16:21 ` Theodore Ts'o [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YuvyGzevAMWyd0K5@mit.edu \
--to=tytso@mit.edu \
--cc=eric.decosta@gmail.com \
--cc=git@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.