[mailop] SPF exploited with Mimecast & DMARC reject

2024-12-06 Thread Alex Shakhov | SH Consulting via mailop
Hello, a few months ago, I was asked to audit emails and integrate a new system for a company. The first thing I did was configure DMARC reporting (replaced v=DMARC1; p=none;) and after two months of analyzing their email traffic, I detected some spoofing activity along with a messy SPF record and

Re: [mailop] SPF exploited with Mimecast & DMARC reject

2024-12-06 Thread Alex Shakhov | SH Consulting via mailop
#x27;d love to see redacted headers. I wonder if it's similar to the > Proofpoint bypass that was in the news a few cycles ago where any 365 > tenant can email through companies that have PFPT setup. > > On 12/6/24 1:43 PM, Alex Shakhov | SH Consulting via mailop wrote: > > Hell

[mailop] GoDaddy / unsanctioned email policy changes

2025-04-30 Thread Alex Shakhov | SH Consulting via mailop
Hello, I have access to a client’s GoDaddy account with over 400 domains and monitor DMARC for a subset of them. One domain in particular sees minimal legitimate traffic - approx. 10 emails/mo via Google Workspace, and has DMARC set to p=reject due to ongoing spoofing attempts. About a week ago,

Re: [mailop] GoDaddy / unsanctioned email policy changes

2025-04-30 Thread Alex Shakhov | SH Consulting via mailop
access to over 400 domains, the potential for more serious actions would have been substantial. Best, Alex On Thu, May 1, 2025 at 12:17 AM John Levine wrote: > It appears that Alex Shakhov | SH Consulting via mailop > said: > >DMARC p=reject. A follow-up review confirmed only two pe

Re: [mailop] GoDaddy / unsanctioned email policy changes

2025-05-01 Thread Alex Shakhov | SH Consulting via mailop
Update: someone from the GoDaddy team reached out and explained what happened. Apparently, many years ago, a website was created using GoDaddy’s Websites + Marketing feature, which is hosted by GoDaddy. At some point, someone found that website and signed up for its newsletter. The confirmation ema

Re: [mailop] GoDaddy / unsanctioned email policy changes

2025-05-01 Thread Alex Shakhov | SH Consulting via mailop
No, their UI doesn't support that. That's what I was told. On Thu, May 1, 2025 at 7:37 PM John R Levine wrote: > On Thu, 1 May 2025, Alex Shakhov | SH Consulting wrote: > > > Update: someone from the GoDaddy team reached out and explained what > > happened. Apparently, many years ago, a website