Re: [FW1] Outbound SMTP problems

[CryptoTech <cryptotech@FW1-NOSPAMgmx.de>]

Steve,
Did you specify a mail server in the Resource properties?  This will cause 'smart
mail host' mode in which the firewall will not attempt to deliver any mail directly,
but simply forward mail to this host for delivery.

CryptoTech

Steve Meeters wrote:

> We have an Exchange 5.5 on our internal network. We have been using it with
> a managed firewall service to receive and send Internet e-mail for quite
> some time. It's our internal e-mail server also. We are migrating to our own
> Check Point FW-1 and this weekend attempted to switch the Internet mail
> services to from the managed firewall to the CP. Our isp changed the DNS
> records for our two damains and incoming mail is delivered to the mail
> server without any problems. We're having problems with the outbound mail
> though. The Exchange server delivers the mail to the firewall, which accepts
> it as shown in the log. The firewall then sends it back to the Exchange
> server, which sends it back to the firewall. This goes on for a few loops
> and then the message is returned to the sender with an error stating
> "Maximum receipt headers exceeded (possible mail loop)." We are using the
> SMTP security server and have rules set up for incoming and outgoing mail.
>
> Any help or suggestions on getting our mail outta here?
>
> Thanks a lot,
>
> Steve
>
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