Slightly OT: ldap, sendmail and Exchange 5.5

[Desai, Jason]

What MTA are you using?  I've done something similar for Exim.

Jason

Kevin Miller wrote:
> I've noticed a lot of mail coming in lately with random usernames like
> fjdoljad at ci.juneau.ak.us.  We have a few names that are a bit hard to
> pronounce, but nothing like that!  It used to be that when someone
> left work here I could just add them to the /etc/access list.  With
> all the ramdomized addresses coming in the noise is getting annoying.
>
> What I'd like to do is to either query my EX 5.5 server or better yet
> to set up ldap on the same server I'm running MailScanner/sendmail on
> and do a local lookup to see if the mail is to a valid user or not.
> If not, just reject it at the MTA level and save a lot of useless
> spam/virus checks.
>
> Has anybody done something along these lines, or know of a good
> HowTo?  I've been googling around but haven't found anything I can
> really sink my teeth into yet.
>
> Thanks.  Sorry it's a bit off topic.  Feel free to reply directly if
> you feel it's too inappropriate and don't want to clutter the list...
>
> ...Kevin

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