[Rspamd-Users] phpmail() generated mail is not signed regardless of sign_local=true

[Johannes Rohr]

Am 22.01.24 um 11:19 schrieb Albrecht Backhaus:
>
>> As the subject says, I notice that mail generated by the phpmail 
>> function (mostly by wordpress) is not being signed regardless of the 
>> value of sign_local. Why is that?  As of lately, google rejects any 
>> unsigned mail, so this is a nuissance.
>>
>> Does anyone have an idea why that is?
>>
> I had a similar problem once in the past. Maybe your phpmail script is 
> not using SMTP authentification on your "rspamd-powered" mail-server.
Well, that's exactly the problem. And my assumption was that sign_local 
would solve it. WordPress stubbornly uses PHP's mail() function unless 
you install a plugin. But there are about 60 wordpress instances on my 
server.
>
>
> DKIM - signatures are only added, when you use SMTP - authentification 
> ( the DKIM - feature would be pretty useless, if there would be no 
> authentification at all ...)

That seems to be not quite the case. It is also added to mails submitted 
via sendmail, just not to mails submitted through the mechanism that 
php's mail() uses, whatever it is . The mails I am concerned about do 
originate from a local user on the server (www-data), so there would be 
no reason not to authenticate it as coming from this server's fdqn. Or 
am I missing something?

Johannes



>
> Regards, Albrecht