[exim] Re: Is sender verification possible on a server that …

Góra strony
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Autor: Evgeniy Berdnikov
Data:  
Dla: exim-users
Temat: [exim] Re: Is sender verification possible on a server that is used as a smarthost?
On Wed, Oct 04, 2023 at 07:59:21PM -0400, Chris Siebenmann via Exim-users wrote:
> Another, much more brute force way (if you don't have a common
> /etc/passwd file that's somehow distributed around) is to change the
> /etc/passwd GECOS field for relevant accounts to have the machine's name
> in it.


MUAs usually insert GECOS to mail headers, but many system daemons do not.
--
Eugene Berdnikov

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