On 12/01/2018 09:29, Jeremy Harris wrote:
> On 12/01/18 09:14, John McMurray via Exim-users wrote:
>> Is there some way of counting attachments in the exim config file to
>> block mails with > than n number of attachments?
>
> Presumably each attachment was a MIME part. Run a MIME ACL:
>
> http://exim.org/exim-html-current/doc/html/spec_html/ch-content_scanning_at_acl_time.html#SECTscanmimepart
>
> and have it incrementing a counter. Deny when it gets
> too large.
I was going to suggest using $mime_part_count, but I believe this gets reset
when processing attachments?
acl_smtp_mime = acl_check_mime
begin acl
acl_check_mime:
deny condition = ${if >{$mime_part_count}{200}}
message = Message contains too many MIME parts
So I guess you could explicitly count attachments more like this:
deny condition = $mime_is_rfc822
set acl_m_attachments = ${eval: $acl_m_attachments + 1}
condition = ${if >{$acl_m_attachments}{200}}
message = Message contains too many attachments
--
Dave
