[Rspamd-Users] multimap and header lines

[Valentijn Sessink]

Adding to my own quest for the right regexp:

- rspamd seems to normalize headers (multiline header ending <LF>, 
normal headers <CR><LF>), but I'm not 100% sure here, it's only what I'm 
seeing in the logs.
- /^X-Someheader: Somevalue$/m seems *not* to match a header line that 
has X-Someheader with Somevalue for value in an e-mail, because of smtp 
line endings.

The correct regexp seems to be:
/(*CRLF)^X-Someheader: Somevalue$/m
... but to be on the safe side,
/(*ANYCRLF)^X-Someheader: Somevalue$/m
... could be the safer bet. (Consult your regional RFC5322 specialist 
for more information, and note that only in theory, theory and practice 
are the same)

I still may be wrong, but this is what PCRE tells me.

Best regards,

Valentijn