Ok, i've got it. After i add slashes at begin and end of regex it works. /<.+?(@|@.*\.)dealscomparer\.com>/
Thank you for your answer. I just don't quite understand what's wrong with the regex. At least it matches on regex101.com with...
Hello, I have created a Postfix content filter which is also triggered according to the mail logs, but the DISCARD action is not carried out and...
Separate names with a comma.