You need to allow relaying from whatever IP addresses your workstations (or
other email/relay servers) will be using.
in /etc/postfix/main.cf, you'll find the "mynetworks" and "relayhost" config
entries. mynetworks defines which networks are trusted to relay mail.
relayhost defines a "smarthost" that Postfix will forward all mail to (if it
isn't otherwise specified in /etc/postfix/transport table.
Of course, I prefer using Webmin (www.webmin.org) to do almost all my Postfix
configuration.
Lines I add that I CAN'T use webmin for:
# TLS stuff (might not work with this version)
smtp_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtp_tls_key_file = /etc/ssl/private/devouredkey.pem
smtp_tls_cert_file = /etc/ssl/certs/devouredcert.pem
smtpd_tls_session_cache_database = sdbm:/etc/postfix/smtpd_scache
Also, if you ever have the host accepting main directly from the Internet,
look into the following lines (also in main.cf):
maps_rbl_domains = dialups.relays.osirusoft.com, bl.spamcop.net,
relays.ordb.org
smtpd_client_restrictions = reject_maps_rbl
This can be configured through Webmin, and allows blacklisting of open relays
(the source of 95% of Internet SPAM)
On Tue, 01 Apr 2003 15:41:33 +0300
"Yuriy Chumak"
Give me an advice how can I set up the Postfix as pass-through on the dial-up firewall service for intranet SMTP server (Lotus Domino).
I going to set up the follow configuration. My system: SuSE 7.3 Firewall, dial-up fetchmail for fetching mail messages via POP3 to intranet mail server postfix for outgoing mail messages via SMTP from intranet mail server to provider
Don't hesitate to make me any advices, but Lotus Domino I can not to remove from LAN. ---- http://photo.alkar.net
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