Greek regex

[treloskilo]

yes that is correct. the exact subject for the incoming email. or if there is a way i can do it directly from proxmox gui from Mail Filters -> What objects.
i found this [^a-zA-Z0-9-()/\s\p{IsGreekandCoptic}] but whatever greek subject i write its blocking it.

I am trying to find a way to get red of phishing emails

 

[hata_ph]

You can try create what object Match Field, but I am not sure will it work for Greek character.
But I do know it will not work on chinese character, that why I use spamassassin rules for it.

 

[treloskilo]

the regex is not accepting greek letters

 

[treloskilo]

I have written this " /=\?UTF\-8\?B\?zrs=\?=/ " and i tested it in regex editors and its working for the text string " =?UTF-8?B?zrs=?= ".
But when i put it in proxmox Mail Filter -> What objects its not working,
Does it need another format?
The string =?UTF-8?B?zrs=?= is for a Greek letter to test. Its the Greek letter λ

 

[treloskilo]

Seems that its not reading at all the UTF8 subject. i tried also with some rules for Russian language but nothing, Not even the above configuration with regex is not working...

 

[treloskilo]

Is there anybody who can help to this??

 

[treloskilo]

I want to block in subject specific Greek words, like λογαριασμός, κλειδωθεί.
λογαριασμός = account
κλειδωθεί=is locked.

 

[treloskilo]

Anybody???

 

[treloskilo]

i managed to discard the subject in /etc/postfix/header_check file and it does block it

root@mail:/etc/postfix# postmap -q "<Subject: =?UTF-8?B?zrs=?=>" regexp:/etc/postfix/header_checks
DISCARD

but when i send a message with the specific subject it does not block it

Dec 31 15:17:50 mail postfix/cleanup[2215463]: 606CEBC1482: info: header From: @gmail.com> from mail-ua1-f44.google.com[209.85.222.44]; from=<@gmail.com> to=........ proto=ESMTP helo=<>
Dec 31 15:17:50 mail postfix/cleanup[2215463]: 606CEBC1482: info: header Subject: =?UTF-8?B?zrs=?= from mail-ua1-f44.google.com[209.85.222.44]; from=<@gmail.com> to=<> proto=ESMTP helo=<>
Dec 31 15:17:50 mail postfix/cleanup[2215463]: 606CEBC1482: info: header To: ..... from mail-ua1-f44.google.com[209.85.222.44]; from=<@gmail.com> to=<> proto=ESMTP helo=<>
Dec 31 15:17:50 mail postfix/qmgr[2215447]: 606CEBC1482: from=<@gmail.com>, size=3314, nrcpt=1 (queue active)
Dec 31 15:17:53 mail postfix/qmgr[2215447]: 8E396BC17B3: from=<@gmail.com>, size=4624, nrcpt=1 (queue active)

Is there anything else i need to do?
I tried also in Mail Filter -> What objects and wrote a regex in </> Match Field but again nothing...

 

[hata_ph]

Suspect mail filter do not support UTF-8 subject. Refer to the bug report inside the thread.

https://forum.proxmox.com/threads/block-mail-subject-with-utf-8-in-what-object.71525/