Re: [exim] message_size_limit depending on incoming domain

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Autor: Jeremy Harris
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Dla: exim-users
Temat: Re: [exim] message_size_limit depending on incoming domain
On 18/11/2019 09:20, Niels Kobschätzki via Exim-users wrote:
> I know that there is a setting message_size_limit and that I can control it
> globally and per router.
>
> I accept mails for a lot of domains and for some of those domains I'd
> like to
> have a bigger message_size_limit than for the rest.


Since you're talking about message acceptance, you're wanting
to deal with the main config option message_size_limit.


> I am not sure at which point the message_size_limit
> comes into play.


The data has only arrived at the point the data acl (or one
of the data-like acls) is run.

> In acl_check_rcpt I have several rules regarding those domains. Can I do
> in one of


No, but you don't need to.


> or is acl_check_rcpt too late in the configuration for the
> message_size_limit-check?


Actually it's too early. But no matter; the option is documented
as being expanded, meaning that at the time of application
(after data has arrived, so that the amount of data can be counted)
it can depend on other factors.

For your purposes, a definition something like

 message_size_limit = ${lookup {$domain} partial-lsearch \
     {$config_dir/special_domains} {100} {50}}


might work.
--
Cheers,
Jeremy