Hey Carl, I think this refers to emails originating within the
Salesforce Marketing Cloud (ExactTarget) platform, but the SPF missing
IP and DKIM failure touch on something that I think is happening to
the mail after it leaves our system. I've spun up a support case to
reach out to the client and ask them if they'd like us to update the
SPF record as indicated and suggesting that they review the potential
DKIM configuration issue.

If a Comcast person sees this and wants to coordinate, feel free to
reach out to me.

Thanks for the heads up.

Cheers,
Al Iverson
On Mon, Jun 25, 2018 at 12:12 PM Carl Byington <c...@five-ten-sg.com> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> bounce.care.comcast.com has
>
> "v=spf1 include:cust-spf.exacttarget.com ip4:76.96.68.101
> ip4:76.96.68.102 ip4:76.96.68.103 ip4:69.252.76.7 ip4:69.252.76.8
> ip4:69.252.76.9 -all"
>
> Note the -all, but at least some mail is arriving here via resqmta-po-
> 04v.sys.comcast.net == 96.114.154.163 not listed in the above spf
> record. You might want to fix that.
>
> Also, the DKIM signature from mdp.comcast.net is broken -
> reason="signature verification failed".
>
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2.0.14 (GNU/Linux)
>
> iEYEAREKAAYFAlsxE2YACgkQL6j7milTFsHZlQCfQ7i8CCsnP+Jy5R1lrFjw7A//
> VyQAn3yFmOu5o/0HTCDnMUWHyH78DS48
> =XKZW
> -----END PGP SIGNATURE-----
>
>
>
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-- 
al iverson // 312-725-0130 // miami
http://www.aliverson.com
http://www.spamresource.com

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