Autor: Frank Richter Datum: To: exim-users Betreff: [exim] How to reject overlong addresses/local parts in From: header?
Hello,
occasionally exim logs in paniclog failing rewrite rules:
2020-12-11 17:14:47 1knl4B-0002o8-Eu no @ found in the subject of an
address list match:
subject="ppppppppppppppkkkkkkkkkkkkkkkkkttttttttttttttttttttttttrrrrrrrrrrrrrrrrrrrrrrrrssssssssssssssssssssssssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaadddddddddddddddddfffffffffffffffffffffcccccccccccccccbbbbbbbbbbbbbbbbbbbbbbbbbbb"
pattern="*@tuced.eu"
The rewrite rule is
*@tuced.eu $local_part@???
It comes from an e-mail with an overlong From: header:
From: "…"
<PPPPPPPPPPPPPPKKKKKKKKKKKKKKKKKTTTTTTTTTTTTTTTTTTTTTTTTRRRRRRRRRRRRRRRRRRRRRRRRSSSSSSSSSSSSSSSSSSSSSSSSSSAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADDDDDDDDDDDDDDDDDFFFFFFFFFFFFFFFFFFFFFCCCCCCCCCCCCCCCBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB@…>
I'd like to reject such "address monsters". How's the best way to
achieve this?