[mailop] from= to=?

2020-12-01 Thread Thomas Walter via mailop
Hello Ops, does anyone know what mail client probes(?) email connections with from= to=? I am preparing to enforce the sender address to match the user account, but I am now seeing warnings with these combinations. According to the helo it seems to be IOS devices likes iPhones and iPads. Regards

[mailop] AT&T contact

2020-12-01 Thread Giovanni Bechis via mailop
Greetings, does anyone have a contact for AT&T ? We have some problems receiving emails from txt.att.net domain. It seems they have an host with dynamic rdns on their pool. Giovanni ___ mailop mailing list mailop@mailop.org https://list.mailop.org/list

[mailop] Test software for ARC?

2020-12-01 Thread Eric Tykwinski via mailop
I'm trying to troubleshoot a DKIM issue which is also ARC signed, so I'm not positive if alignment is an issue or not. Basically, routing is a mess. Office365 -> Office365 -> Office365 -> Barracuda filter -> Onsite Exchange -> Our server. Hoping there is a program to throw in raw emails an

Re: [mailop] Test software for ARC?

2020-12-01 Thread Andris Reinman via mailop
You can validate DKIM and ARC of an email message with mailauth https://github.com/andris9/mailauth#command-line-usage (developed by myself) Regards, Andris Reinman > On 1. Dec 2020, at 18:55, Eric Tykwinski via mailop wrote: > >  > I’m trying to troubleshoot a DKIM issue which is also ARC si

Re: [mailop] Test software for ARC?

2020-12-01 Thread Eric Tykwinski via mailop
Andris, > From: andris.rein...@gmail.com > Sent: Tuesday, December 1, 2020 12:01 PM > To: eric-l...@truenet.com > Cc: mailop@mailop.org > Subject: Re: [mailop] Test software for ARC? > > You can validate DKIM and ARC of an email message with mailauth > https://github.com/andris9/mailauth#comman

Re: [mailop] Test software for ARC?

2020-12-01 Thread Eric Tykwinski via mailop
Andris, > From: andris.rein...@gmail.com > Sent: Tuesday, December 1, 2020 12:01 PM > To: eric-l...@truenet.com > Cc: mailop@mailop.org > Subject: Re: [mailop] Test software for ARC? > > You can validate DKIM and ARC of an email message with mailauth > https://github.com/andris9/mailauth#comman

Re: [mailop] Test software for ARC?

2020-12-01 Thread André Peters via mailop
Wow, that's nice. Would love to use this in mailcow at some point. :-) > Am 01.12.2020 um 18:08 schrieb Andris Reinman via mailop : > >  > You can validate DKIM and ARC of an email message with mailauth > https://github.com/andris9/mailauth#command-line-usage (developed by myself) > > Regards,

Re: [mailop] Test software for ARC?

2020-12-01 Thread lukn via mailop
Such a check should be trivial to script with dkimpy: https://launchpad.net/dkimpy/ from dkim import ARC maildata = open('path/to/mailfile').read() print(ARC(maildata).verify()) This will return True if signature is valid and False if signature is invalid. To test multiple files in a directory ju

Re: [mailop] o2.pl / wp.pl

2020-12-01 Thread Al Iverson via mailop
They publish postmas...@wp.pl as a contact address. Wirtualna Polska has a premium sender (Nadawca Premium) program where they require people sending bulk mail above a certain volume to pay them for inbound email access. I don't know what the volume limit is, but I suspect it is very low and that

Re: [mailop] Test software for ARC?

2020-12-01 Thread Brandon Long via mailop
There's an arcverify script in dkimpy already, see https://git.launchpad.net/dkimpy/tree/dkim/arcverify.py Brandon On Tue, Dec 1, 2020 at 11:57 AM lukn via mailop wrote: > Such a check should be trivial to script with dkimpy: > https://launchpad.net/dkimpy/ > > from dkim import ARC > maildata =