sure, here's what worked for me. Curiously, I was surprised it was just my language (german) missing in the regex. Adding it to the regex resolved the issue.
Code: Select all
'/^\s*(Von\s?:.+\s?(\[|<).+(\]|>))/mu', // "Von: NAME <EMAIL>" OR "Von : NAME <EMAIL>" OR "Von : NAME<EMAIL>"(With support whitespace before start and before <)