The worse thing is with forwarding of non-geographic phone numbers... (0345,etc, in the UK). We've had people ring us when they were trying to get through to the tax office, ambulance service (not 999), etc, etc. It's pretty much impossible to fix that. The dialer is calling the correct publicised number, but the NGN is configured to redirect to us, instead of the correct number. It seems like we're one of a pool of numbers, so if the caller retries, they often get through to a correct person.

You try and get hold of the person whose job is to set up the phone forwarding to tell them they've typed a number wrong!

You can't block it either, as the forwarding isn't signalled in any way.

Paul

On 24 October 2022 14:59:32 Tara Natanson via mailop <mailop@mailop.org> wrote:
Yup, I do have a way to filter. I just thought it was an interesting problem that the recipient of a systematic forward is not able to stop the forwarding of the mail.

Tara


On Mon, Oct 24, 2022 at 9:43 AM Sebastian Nielsen via mailop <mailop@mailop.org> wrote:


Im not talking if you know the address.

Im talking if the address is present somewhere in the forwarded email.



That’s a fundamental difference, because if you know the address, you cannot do so much to it, but if its present in the actual mail somehow (header, etc) you can write a filter to dump the crap into the trash.



Från: Tara Natanson via mailop <mailop@mailop.org>
Skickat: den 24 oktober 2022 15:30
Till: Sebastian Nielsen <sebast...@sebbe.eu>
Kopia: Mailing List <mailop@mailop.org>
Ämne: Re: [mailop] How do I break Gmail forwarding?



Yes I know the address @gmail the messages are being sent to. I do not control that gmail inbox though.



Tara



On Mon, Oct 24, 2022 at 9:23 AM Sebastian Nielsen via mailop <mailop@mailop.org> wrote:

Does the MAIL FROM (Sender header) contain the gmail address?

Does the MIME From contain the gmail address?



Check the headers if the gmail address is SOMEWHERE there.

Then you could put a rule to block such mails.





Från: Tara Natanson via mailop <mailop@mailop.org>
Skickat: den 24 oktober 2022 15:09
Till: mailop <mailop@mailop.org>
Ämne: [mailop] How do I break Gmail forwarding?





At some point someone set up a gmail address which forwards automatically to our postmaster address. Yes I realize someone had to have clicked something to allow this to happen (multiple people monitor the box). But I cannot undo it. I do not control the original mailbox the mail is being forwarded FROM.



Anyone have any tricks I'm missing?



Tara Natanson

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