error message...X-Pop

[nhb8]

I received an error message on my email and it saaid somethin g about my X-Pop-User.....What is this, what is an X-pop?

[Eric]

Hi nhb8 & welcome to Poco Forums,

I received an error message on my email and it saaid somethin g about my X-Pop-User.....

Where did you receive this error?
Was it in PocoMail/Barca?
What was the entire error message?

What is this, what is an X-pop?

Reading Email Headers: X-headers is the generic term for headers starting with a capital X and a hyphen.
The convention is that X-headers are nonstandard and provided for information only, and that, conversely, any nonstandard informative header should be given a name starting with "X-". This convention is frequently violated.

I hope this helps.