Expression Filter issue

Hello husme ,

Thank you for reaching out to the community,  Expressions can be entered as Perl Compatible Regular Expressions (with max. 128 characters).  For detailed information on using regular expressions in the expression filter, see the Sophos Knowledge Base.

But what's wrong with the expression? Im not able to find the error.

If I paste dhe Mail header to Notepad++ and enter the search string ".*@[0-9]+\.com" I get a match on  "From: "long_trox" <long_trox@126.com" In my opinion, the expression filter should filter this mail.

What am I missing?

Hello husme ,

Try the following expression: "^https?://([A-Za-z0-9.-]*\.)?long_trox@126\.com/"

Sorry, but this make no sense for me.
I want to filter every address originating from @xyz.com not only "long_trox@126.com" and why should I include https?

no need for https but in that scenario you can use ^([A-Za-z0-9.-]*\.)?xyz\.com/