For several MONTHS now I have been deluged with spam.
Its mainly focused on "a certain brand of antivirus product beginning with Mc"
I wouldn't mind apart from that I use that product and thus the spam interferes with normal routine communication.
Its gotten so bad that I have now moved most of my email to G-company mail to avoid using this platform as much as possible.
Even with setting various "blocks for users and domains" the main sender is now annoying G-company and I get mail from people still to this email account so I can't block G-company mail at the domain level.
Feeding the headers into the mxtoolbox.com mx header analyser site shows quite obvious fakery going on in the headers.
They show Sender Policy Framework (SPF) Authentication failure a glaring "no no" for mail delivery; and also DKIM alignment and DKIM authentication failures; all of which contribute to DMARC failure.
Not sure if you validate for DKIM but the miss on SPA authentication failure worries me as this is pretty basic stuff.
As stated this has been going on for months and its a daily battle.
If you want a selected set of message headers I'm happy to provide them but really someone at BT needs to get their act together.
