RE: [Exim] Locking Exim4 Down

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Autor: Mark McRitchie
Data:  
A: 'Tristram Cheer'
CC: 'exim-users@exim.org'
Assumpte: RE: [Exim] Locking Exim4 Down
Hi there,
> If anyone could lend me a hand in blocking nono-auth
> connections to send mail that would be great


Can you not just trim down the stock acl_check_rcpt?

Something like:

acl_check_rcpt:
# Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by
# testing for an empty sending host field.
accept hosts = :

# Accept if the message arrived over an authenticated connection, from
# any host. Again, these messages are usually from MUAs, so recipient
# verification is omitted.
accept authenticated = *

  # Reaching the end of the ACL causes a "deny", but we might as well give
  # an explicit message.
  deny    message = Relay not permitted



HTH,
Mark.







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