Re: Authenticating 'From' header to match envelope

2018-10-03 Thread Stefan Bauer
Johannes, did you double check if your planned setup will not break other things? Have similar needs but am not yet deep enough into mail to see possible pitfalls. Stefan Am Dienstag, 2. Oktober 2018 schrieb Johannes Bauer : > Hi list, > > I'm having an issue with my Postfix configuration: Curr

Re: Authenticating 'From' header to match envelope

2018-10-03 Thread Tobi
> when in Thunderbird someone uses the "Custom From Address" feature, it > doesn't change the envelope sender, but only the actual "From" header > field are you sure? I just tested with my TB (60.0) under Linux (Fedora 28) and found that both (envelope from and from header) are changed to the valu

Re: check if envelope from and from is the same

2018-10-03 Thread Tobi
if your auth senders spoof from headers: block their login account and terminate their service Am 02.10.18 um 21:17 schrieb Stefan Bauer: > Hi, > > we're running a small smtp send only service for authenticated users > only. Even though we only accept allowed combinations of authenticated > user