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troubleshooting Question

Invalid MX Records from notification.skype.com ?

Avatar of morten444
morten444 asked on
AntiSpamEmail Servers
2 Comments1 Solution566 ViewsLast Modified:
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 xxx@skype.com and they get the mail
Same user after buying a product gets a confirmation mail from xxx@notification.skype.com 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
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