[ale] Strange sendmail (and postfix) spam issue: accepting fail "from" myself?

[Derek Atkins]

Hi, Phil,

Phil Turmel <philip at turmel.org> writes:

> On 03/29/2016 04:58 PM, Alex Carver wrote:
>
>> As for the rule, no clue how to write it in sendmail's m4 macros, I use
>> exim for the MTA.
>
> I too use exim.  I have a rule that requires senders in the hosted
> domain to authenticate:
>
> Sample excerpt from exim.conf:
>
> # In the Main config section
> domainlist must_auth_senders = example.com
>
> # In the ACL section under acl_check_rcpt after basic checks but
> # before SPF and blacklist checks.
>   accept  authenticated  = *
>   deny    message        = Local originators must authenticate
>           sender_domains = +must_auth_senders

Thank you, but this doesn't help me configure sendmail....  :-(

> HTH,
>
> Phil

-derek
-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
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