We are using ISP Spamfilter where we have setup a rule that if a domain has an invalid MX Record, it should be seen as spam. I think that is very normal
Today we have started to get the first complaints..
A user gets a mail from email@example.com and they get the mail
Same user after buying a product gets a confirmation mail from firstname.lastname@example.org but never gets the mail.
I then go through our log files and I can see the mail has ended up in spamfilter and the reason is
"invalid MX Record"
My question is: they are both comming from skype.com so why is one no MX record and has.
Is MX Record just defined by top domain?
I am asking to make sure that its not our spamfilter that is not set correct as I find it hard to belive skype does not have control over their MX Records
Any comment to confirm where the fault is are welcome