Mason Landrum wrote:
Everyone,
We are receiving a tremendous amount of junk e-mail and undeliverable
messages for e-mails we have not sent. Most of these are addressed to
individuals that do not exist within our organization.
My questions is, is there a way to deny these e-mails at the Gnatbox
proxy level before they get to the e-mail server. Right now my e-mail
proxy is limited to only allowing the correct domain name to be
accepted. Can I tighten this down to specific e-mail addresses like
[EMAIL PROTECTED]
Thank you in advance for your help.
Sincerely,
Mason Landrum
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I do this at the MTA level. With sendmail you'll have to purchase (small
cost) milter-ahead or with other MTA's you can do it for free.
EG with exim its a simple ACL to lookup AD/LDAP or a file of valid
addresses and reject non-existent ones..
--
Martin Hepworth
Senior Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300
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