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"[* Header Check *] - Domain does not exist" - what does it mean?

 
Vitaly Karasik_1
Honored Contributor

"[* Header Check *] - Domain does not exist" - what does it mean?

sometimes I see "[* Header Check *] - Domain does not exist" into email subject.
It seems that MS Exchange or MS Outlook add this.
what does it mean?
3 REPLIES 3
Jon Finley
Honored Contributor

Re: "[* Header Check *] - Domain does not exist" - what does it mean?

There's more to it, but...Exchange (and other MTA's) will check the validity of where an email has been sent from. If it can't find the sending domain, it will inject the header.

Jon
"Do or do not. There is no try!" - Yoda
Vitaly Karasik_1
Honored Contributor

Re: "[* Header Check *] - Domain does not exist" - what does it mean?

Thanks!
In fact, I already understood and fixed this by adding "A" record.

Vitaly Karasik_1
Honored Contributor

Re: "[* Header Check *] - Domain does not exist" - what does it mean?

fixed.