Differences

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--- postfix [2006/04/02 10:50]
a
+++ postfix [2012/07/31 12:45] (current)
greebo old revision restored
@@ Line 1: / Line 1: @@
 ====== Postfix ======
 ==== Useful links ====
   * [[http://www.securitysage.com/antispam/]]
   * [[http://openrbl.org/|OpenRBL check]]
+  * [[http://www.rfc-ignorant.org/]]
+  * [[http://www.acme.com/mail_filtering/]]
+  * [[http://www.pantz.org/os/openbsd/postfix-spamd-dovecot.shtml|Some useful postfix rules]]
+  * [[http://blog.dkorunic.net/|Spam Ninjas - Dinko Korunic’s blog]]
 ===== TODO =====
@@ Line 22: / Line 28: @@
   unverified_recipient_reject_code = 550
   unverified_sender_reject_code = 550
+smtpd_discard_ehlo_keywords = silent-discard, ETRN  VRFY
 ===== Different Setups =====
@@ Line 28: / Line 38: @@
   * [[postfix:smtp-auth|Postfix with SMTP-auth]]
   * [[postfix:asrelay|Postfix as relaying server (to Exchaneg/Domino)]]
+  * [[postfix:advance|Advance postfix hacks]]
 ===== Cool :) postifx hacks =====
 here are some tips ..
+==== Making postfix only send through 'smart relayhost' when direct connection is not available ====
+I use this construction to have a fallback option when the direct connected ADSL-line is down: replace '**''relayhost''**' in '**main.cf**' by '**''smtp_fallback_relay''**'.
 ==== Hide internal/intranet address ====
@@ Line 52: / Line 68: @@
     /^((Resent-)?From|To|Cc|Date|Return-Path|Message-ID):/ OK
     /./ IGNORE
@@ Line 58: / Line 75: @@
 ''Be aware that if your IMAP server receives messages over LMTP, over-quota situations won't be discovered until after Postfix has accepted the message, so it will have to be bounced. If you want to reject mail for users over their quotas, you'll have to use an access table listing users who are over their quotas.''
+-02-06 (b) Not necessarily. If you use reject_unverified_recipient, cyrus LMTP rejects mail for over-quota mailbox and Postfix rejects them at SMTP stage.
+----------------
-----------------
 ===== Unsorted stuff =====
@@ Line 88: / Line 106: @@
 Limit the number of times a client can issue a junk command such as NOOP, VRFY, ETRN or RSET in one SMTP session before it is penalized with tarpit delays.
 ===
+tired of  "postfix/smtpd : OTP unavailable because can't read/write key database"
+add to /etc/postfix/sasl/smtp.conf
+mechlist: plain login crammd5 digestmd5
+or try this:
+cd /usr/lib/sasl2
+mkdir deactivated
+mv *otp* deactivated
+# for good measure
+mv *ntlm* deactivated
 =============
@@ Line 146: / Line 177: @@
 .0.0.0/5	REJECT Domain MX in class E reserved network
 .0.0.0/5	REJECT Domain MX in reserved network
+source - IPv4 bogon list - http://www.cymru.com/Documents/bogon-bn-agg.txt
 ==========
@@ Line 308: / Line 341: @@
   dsl.net                 554 Use smtp.dsl.net as outgoing e-mail server!
+**B wrote**
+To matchne vsak hostname, v katerem se pojavi ".dsl."
+ali ce hoces bit natancen:
+/^.*\.dsl\..*$/ (^ in $ sta zacetek in konec stringa, na zacetku in koncu stringa je lahko karkoli (.*), nekje v stringu pa je tudi ".dsl.")
 /etc/postfix/sender_checks