[mailop] Looking for an AT&T abuse contact

[Liam Fisher via mailop]

Looking for an AT&T abuse contact


I have a customer that has a block for forwards and 
abuse_...@abuse-att.net isn't

responding.



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[mailop] Looking for any mimecast folks

[Liam Fisher via mailop]

Looking for a contact at mimecast to talk about an issue
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[mailop] Looking for a contact for mondo.com

[Liam Fisher via mailop]

Looking for a contact for @mondo.com about some blocked mail
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[mailop] malformed header messages out of M365

[Liam Fisher via mailop]

Is anyone else seeing  odd  indented bounce headers coming out of M365 that 
might be causing some processing issues?


Content-Type: multipart/alternative;
    boundary="Ica55N8hBprm=_?:"
 bounce-780_HTML-53664742
 
the bounce being indented makes it add on to the content type declaration and
causes havoc in message processing.
 
 
 
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[mailop] looking for aon.at abuse contact

[Liam Fisher via mailop]

If anyone has an abuse contact address for aon.at to share, it would be 
appreciated.
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Re: [mailop] Looking for a hotmail/outlook contact

[Liam Fisher via mailop]

Ok 
 
I have three servers:
smarth-prod1.sys.elnk.net has address 24.41.67.41
smarth-prod2.sys.elnk.net has address 24.41.67.42
smarth-prod3.sys.elnk.net has address 24.41.67.43
 
That we use for customer forwards.  Detected spam filtered out.

All three were severely rate limited/blocked over the holiday, and delist took 
forever to
get back to us and we managed to get .41 and .42  delisted.

.43 sends the same traffic as the other two and they are refusing to delist it.

They are closing the ticket after every request.  No dialog, no questions 
answered.
 
I have a lot of mutual customer complaints.
 
 
 
-Original Message-
From: Graeme Fowler 
Sent: Jan 12, 2022 3:50 PM
To: mailop 
Subject: Re: [mailop] Looking for a hotmail/outlook contact
 
Liam
 
On 12 Jan 2022, at 20:29, Liam Fisher via mailop wrote:
> Looking for a hotmail/outlook contact
 
Background detail is required here. Your name is all we have; an explanation of 
the issue you need to make contact about (IP addresses, domains etc) is needed.
 
Graeme
(not an MS employee)
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[mailop] Looking for a hotmail/outlook contact

[Liam Fisher via mailop]

Looking for a hotmail/outlook contact
 
please reply
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[mailop] ISO: tech contact with Trend Micro

[Liam Fisher via mailop]

ISO: tech contact with Trend Micro - or someone who knows how to get a 
submission looked at






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[mailop] Looking for contact for uhc.com e-mail

[Liam Fisher via mailop]

Looking for contact for uhc.com e-mail

Your servers are throwing a lovely "451 Requested action aborted: local error in processing"
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[mailop] emailsrvr.com/racksspace running old PBL copy

[Liam Fisher via mailop]

I had my IP range delisted from the Spamhaus PBL a few weeks ago.
Rackspace/emailsrvr.com is still running an old copy and blocking.

Anyone know a contact?


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[mailop] Spamhaus PBL question

[Liam Fisher via mailop]

I'm setting up some outbound relays in a new DC on new (to me) IP space.

The subnet I am using is on the Spamhaus PBL, which is causing problems.

I'm trying to get these delisted but Spamhaus isn't replying to the forms.

Anyone have any current contacts or if anyone here can help and reply privately?


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Re: [mailop] Effeciveness (or not) of SPF

[Liam Fisher via mailop]

-Original Message-
>From: Thomas Walter via mailop 
>Sent: Dec 10, 2020 2:26 AM
>To: mailop@mailop.org
>Subject: Re: [mailop] Effeciveness (or not) of SPF
>
>Hey Brandon,
>
>On 09.12.20 00:55, Brandon Long via mailop wrote:
>> 
>> On Tue, Dec 8, 2020 at 1:31 AM Paul Smith via mailop > > wrote:
>> If you're forwarding to your own company's mail server, then it should
>> be easy to have that forwarding work with SPF, and if you're forwarding
>> to someone like gmail, then, to be honest, it should be relatively
>> trivial for them to *USE* SPF to allow forwarding to them. I could tell
>> Google to allow a specific domain to forward to me (the domain of the
>> forwarder), and they use the SPF record for that domain to validate the
>> IP addresses that can then forward and override other SPF checks.
>> 
>> 
>> That feature was on my backlog at Gmail for a long time, but never high
>> enough priority
>> to get off it... now it would probably use ARC instead unless that
>> becomes a pipe dream,
>> at least theoretically with ARC we could just learn it and not worry
>> about the user interface
>> and confusing users.
>Interested question: Your systems could learn something like that too?
>
>If a number of emails come in to the same recipient with "failing" SPF
>from the same host(s)/domains it is probably a forwarder to that recipient?
>
>Regards,
>Thomas Walter
>
>-- 
>Thomas Walter
>Datenverarbeitungszentrale
>
>FH Münster
>- University of Applied Sciences -
>Corrensstr. 25, Raum B 112
>48149 Münster
>
>Tel: +49 251 83 64 908
>Fax: +49 251 83 64 910
>www.fh-muenster.de/dvz/
>


SPF plays havoc with forwards unless the sender is rewriting their 
envelope from addresses to a domain with SPF friendly to their 
source.
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Re: [mailop] STARTTLS - Constant Contact and yahoo.co.jp

[Liam Fisher via mailop]

Agreed - this is the road to escalations and suffering.



On 8/26/2020 4:02 PM, Michael Orlitzky via mailop wrote:

On 2020-08-26 12:50, Scott Mutter via mailop wrote:

I've been toying with the idea of forcing outbound SMTP connections to
use TLS, but thought I'd take a quick look and see who might miss mail
if this done.

This sounds good at first but if you make a flow chart, all paths lead
to either "nothing changes" or "shoot yourself in the foot." There's no
scenario that I know of where forcing TLS (as opposed to "opportunistic"
TLS) improves anything.

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[mailop] SPF notification question

[Liam Fisher via mailop]

Quick question to the hive mind about SPF.What do you usually do for domains that have broken SPF records?  I mean the ones affecting your inbound to local delivery.Do you notify the sender and what's the usual process?

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