Sergio Bollini wrote:
> For outbound mail, I haven't an external mail relay; instead, asmtpd
> must be able to resolve MX registers by himself and establish a smtp
> connection directly with the mail's destination. In page 86 of "Managing
> FireWall-1 Using the OpenLook GUI", it says that leaving empty "Mail
> Server" field in SMTP resource specification window and "default_server"
> field in $FWDIR/conf/smtp.conf file "then mail is forwarded to its
> original destination". When I defined the resource for outbound mail, I
> left blank both fields (the intended effect of this is forcing asmtp to
> resolve MX); then when the firewall receives an outgoing mail, it fails
> to retransmit it to the outside saying that cannot connect to the final
> MTA.
Yes. The internal machine (which is sending the mail) should contact the
external MX host immediately. The SMTP proxy works in a transparant
fashion. It does (AFAIK) not do any MX lookups. It's just a
store-and-forward thingie.
Best regards,
Tycho
--
| ir. Tycho Fruru
| Sr. Security Engineer
|
NetVision nv
tycho @
netvision .
be
http://www.netvision.be
|
| T. +32-(0)16-31.00.15
| F. +32-(0)16-31.00.29
References:
|
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