[opendmarc-users] Unable to parse From header field

[A. Schulze]

Murray S. Kucherawy:

> I would imagine the idea here is that some other component of your  
> mail system would identify such a message as clearly bogus and  
> reject it, independent of DMARC.
>
> What do others think?  We could easily add an option that will cause  
> OpenDMARC to request rejection of messages where From is unparseable.

it would help.
at least postfix has currently no easy option to enforce a valid RFC5322.From
postfix could check headers but enforcing strict syntax would require  
complex regex I guess.

I would love to see a milter that sould do this job.
But I have a strong requirement: whitelisting!

It must be possible to whitelist invalid From lines or clients.
For example by ip, cidr or rdns.

Andreas