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 = 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 just use glob and a loop.
>
> HTH
>
>
> On 01.12.20 17:46, Eric Tykwinski via mailop wrote:
> > 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 and let me know, but I
> > didn't really see anything.
> >
> >
> >
> > Sincerely,
> >
> >
> >
> > Eric Tykwinski
> >
> > TrueNet, Inc.
> >
> > P: 610-429-8300 <(610)%20429-8300>
> >
> >
> >
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> >
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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 you are potentially hitting it.

https://dlaprasy.wp.pl/pr/316310/wirtualna-polska-przedstawia-program-dla-nadawcow-masowej-korespondencji

Assuming you're not in a position to pay for this access, you might
want to nudge those subscribers to a mailbox environment that won't
cost you extra money, i.e. Yahoo or Gmail.

Cheers,
Al Iverson

On Mon, Nov 30, 2020 at 6:17 AM Stephen Frost via mailop
 wrote:
>
> Greetings,
>
> Does anyone have a contact for o2.pl or wp.pl..?
>
> We are getting a fair bit of our mailing list email bounced by them and
> are trying to reach out to someone to clear that up, otherwise we're
> going to have to unsubscribe something like 100 folks.  What's being
> bounced doesn't seem to have any consistency to it, all outbound mail
> passes SPF/DKIM and comes from a pretty well trusted IP (Medium Trust)
> that's been around for quite a while and we successfully deliver to lots
> of folks without issue.
>
> Thanks,
>
> Stephen
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And DNS Tools too! https://xnnd.com
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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 just use glob and a loop.

HTH


On 01.12.20 17:46, Eric Tykwinski via mailop wrote:
> 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 and let me know, but I
> didn't really see anything.
> 
>  
> 
> Sincerely,
> 
>  
> 
> Eric Tykwinski
> 
> TrueNet, Inc.
> 
> P: 610-429-8300
> 
> 
> 
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> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop
> 
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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,
> 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 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 and let me know, but I 
>> didn’t really see anything.
>>  
>> Sincerely,
>>  
>> Eric Tykwinski
>> TrueNet, Inc.
>> P: 610-429-8300
>> ___
>> mailop mailing list
>> mailop@mailop.org
>> https://list.mailop.org/listinfo/mailop
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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#command-line-usage (developed by myself)
>
> Regards,
> Andris Reinman

Worked great, thanks for the hard work.
I'll keep this in my toolbox.

Sincerely,

Eric Tykwinski
TrueNet, Inc.
P: 610-429-8300


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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#command-line-usage (developed by myself)
>
> Regards,
> Andris Reinman

Thank you... I’ll test it out now.

Sincerely,

Eric Tykwinski
TrueNet, Inc.
P: 610-429-8300




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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 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 and let me know, but I 
> didn’t really see anything.
>  
> Sincerely,
>  
> Eric Tykwinski
> TrueNet, Inc.
> P: 610-429-8300
> ___
> mailop mailing list
> mailop@mailop.org
> https://list.mailop.org/listinfo/mailop
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[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 and let me know, but I
didn't really see anything.

 

Sincerely,

 

Eric Tykwinski

TrueNet, Inc.

P: 610-429-8300

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[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
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[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,
Thomas Walter

-- 
Thomas Walter
Datenverarbeitungszentrale

FH Münster
- University of Applied Sciences -
Corrensstr. 25, Raum B 112
48149 Münster

Tel: +49 251 83 64 908
Fax: +49 251 83 64 910
www.fh-muenster.de/dvz/
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