> And  actually  this  is a MAJOR drawback to ever use the Max invalid
> rcpt  at the SMTP connection registry fix, when you have a secondary
> MX.

A  secondary  MX  _that  doesn't  validate  addresses_,  you mean. (In
addition, when you do have one that can validate, having a max-invalid
policy  that isn't enforced on the secondary is ridiculous, given that
spammers love secondaries.)

> Does anyone have some suggestions on how to prevent those dictionary
> attacks?

See  my  sig  for  ldap2aliases  if applicable. The secondary needs to
communicate with the primary via LDAP.

> Spare  me  from 3rd parties solution, Imail mainly does what we need
> it  to  do  and  we don't NEED (and/or) WANT to add another point of
> failure.

Do scripts count as third-party? If so, you're out of luck.

--Sandy


------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]

SpamAssassin plugs into Declude!
  http://www.imprimia.com/products/software/freeutils/SPAMC32/download/release/

Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases!
  
http://www.imprimia.com/products/software/freeutils/exchange2aliases/download/release/
  
http://www.imprimia.com/products/software/freeutils/ldap2aliases/download/release/


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