Fraenzl, Martin via Exim-users <exim-users@???> (Do 21 Jun 2018 15:23:26 CEST):
> Hi Guys,
>
> I have an issue with my "verify recipient" acl, where I use a callout to verify if a user exists or not.
> The callout is checking against a Exchange 2013 server farm.
>
> I found the article below, where Heiko and some other guys are discussing this issue.
>
> ttps://www.mail-archive.com/exim-users@exim.org/msg46265.html
>
> Is there any known solution for this problem?
The exchange server administator should be able to provide you another
port (mostly they use 2525/tcp) for checking the recipient via a SMTP
call-forward
I don't know the very details, but if I was pushing them enough, they
were able to find the settings they've to change :)
Then you can use specialized router/transport combo for recipient
verification only.
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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