[mailop] Domain related AT block issue

[Udeme via mailop]

Hi folks,

Please could someone from AT reach out to me off-list? A couple of
customers are experiencing issues with a domain being blocked.

We’ve tried the normal, public channels with minimal luck.

Thanks in advance!

Udeme
Email Deliverability Manager, AWS SES
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Re: [mailop] Spamhaus contact?

[Udeme via mailop]

The listing’s details explain the problem. I’d start with researching the
details there.

As for a timeline, I’d shift the “concerns” towards fixing what caused the
listing. That being said, I can’t speak for Spamhaus. Good luck.

On Mon, Jan 15, 2024 at 2:16 PM Mark Fletcher  wrote:

> On Mon, Jan 15, 2024 at 11:00 AM Udeme  wrote:
>
>> Mark: looks like as of seconds ago the SBL’s been resolved & removed from
>> the SBL?
>>
>
> Yes! That's great, but unfortunately and confusingly, it's switched to a
> different listing instead:
> https://www.spamhaus.org/query/ip/66.175.222.108
>
> Thanks,
> Mark
>
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Re: [mailop] Spamhaus contact?

[Udeme via mailop]

Mark: looks like as of seconds ago the SBL’s been resolved & removed from
the SBL?

-Udeme

On Mon, Jan 15, 2024 at 1:41 PM Mark Fletcher via mailop 
wrote:

> Hi All,
>
> One of groups.io's servers was listed by Spamhaus starting Saturday
> afternoon (https://www.spamhaus.org/sbl/query/SBL638016). I've been
> trying to contact them ever since, but they've been silent. I am humbly
> asking for help.
>
> We're an email groups service, like Google Groups. Based on evidence
> provided by Spamhaus, it appears that some groups that migrated from Yahoo
> Groups when Y! Groups shut down contained some Spamhaus spamtrap addresses.
> On Spamhaus' suggestion, I built a reverification system late last year and
> tested it on a small group of users. Yesterday, I kicked off a
> reverification to a much larger segment of users. I then told Linode, our
> hosting provider, about it, and asked them to contact Spamhaus, as directed
> by their SBL listing. Linode did that, but has not heard back. I also tried
> contacting Spamhaus this morning, but haven't heard back yet. I am
> wondering what else I need to do.
>
> Thanks,
> Mark
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Re: [mailop] BIMI boycott? Lookup tool, why we publish BIMI anyway, and intellectual property law considerations

[Udeme via mailop]

There’s a trademark ownership vetting item that’s part of BIMI
implementation. Not just *anyone* can get past that. #wink

-Udeme

On Thu, Jan 11, 2024 at 5:36 AM Laurent S. via mailop 
wrote:

> I might have missed something, but wouldn't that be a phisher's wet dream?
>
> Most spammers know very well how to do a mail with valid DMARC. So, now
> they only need to send a valid mail from any throw away cheap domain and
> in their BIMI add the logo of paypal?
>
> I understand it's not great to have to pay for the
> verification/certification, but leaving the door open to abuse is a
> dangerous path to take.
>
> Being on the antispam side, I would hate to have to start implementing
> BIMI spoof checks.
>
> Regards,
> Laurent
>
> On 11.01.24 00:05, Louis Laureys via mailop wrote:
> >  We decided to keep this because I read that some webmail clients are
> >  planning to support BIMI without checking for certificates, or,
> >  perhaps, also displaying a little lock icon in the corner of the
> >  sender's BIMI-style logo image where certification is verified.
> >
> > This is exactly what I have in mind for my client, thanks for publishing
> your
> > logo in an easily accessible and standard way :)
> >
> > Groetjes,
> > Louis
> >
> >
>
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Re: [mailop] DMARC processing

[Udeme via mailop]

I +1 as well. I’ve used a few services over the years, and it helps a lot.

-Udeme

On Tue, Dec 19, 2023 at 10:47 PM Jesse Thompson via mailop <
mailop@mailop.org> wrote:

> On Tue, Dec 19, 2023, at 7:20 PM, Tara Natanson via mailop wrote:
>
> On Tue, Dec 19, 2023 at 3:29 PM Eduardo Diaz Comellas via mailop <
> mailop@mailop.org> wrote:
>
> Hi all,
>
> Thanks all for the suggestions.  I will give a try to some of them to
> see if they are a good fit for our usage case.
>
> We handle around 300 domains, most of them with 5-10 mailboxes... so the
> volume of reports can get pretty wild.
>
>
> I've been working to bring my corporate domains into compliance over the
> last few years.  We used both Valimail and Dmarcian.  I'd say, if you're
> managing A LOT of domains it is totally worth paying a service to help with
> the parsing.  The dashboards and ability to drill down into things is VERY
> USEFUL. They help you parse out which sources are likely forwards and
> spoofs etc. so you can focus on the sources of legitimate mail and work to
> bring them into compliance.  They can also help you come up with a strategy
> for how to attack the problem.  It is not small, and as you dig it just
> gets bigger.
>
>
> +1
>
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Re: [mailop] comcast contact

[Udeme via mailop]

I’d take a look at postmaster.comcast.net (redirects to the link below) as
a starting point:

https://spa.xfinity.com/postmaster?faq=avoid-blocks-ipv4

PS:
* you explain with some detail what the issue is (after checking out what I
shared above), folks may be able to chip in.
* yesterday was a federal holiday in the US (Thanksgiving), and today’s an
online shopping ‘frenzy’ day aka Black Friday”.

Good luck.

-Udeme

On Fri, Nov 24, 2023 at 5:52 PM Mamidi, Sandeep via mailop <
mailop@mailop.org> wrote:

> Hi Every one,
>
>
>
> We need comcast postmaster email address , Any one from comcast ?
>
>
>
> Thanks,
>
> *Sandeep Mamidi* | ICS-Email Operations | Broadridge Financial Solutions
> (India) Private Limited
> Adjacent to Cyber Towers, Hi-Tec City, Madhapur | Hyderabad 500081
> Telangana | India | m+91 9154044660
>
> 
> 
> 
> 
>
> broadridge.com 
>
>
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