warning: network_biopair_interop: error writing 37 bytes to the network: Broken pipe
	Hello I've been receiving lots of errors in mail.log Mar 7 11:49:47 mail postfix/smtpd[92520]: warning: network_biopair_interop: error writing 37 bytes to the network: Broken pipe Mar 7 11:50:13 mail postfix/smtpd[92555]: warning: network_biopair_interop: error writing 27 bytes to the network: Broken pipe... more » By Rishi Gangoly  - Mar 7 - 2 new of 2 messages

	how to block annoying spammer
	I have postfix / amavis / dovecot / vmails via postgresdb stack for office website Sending/receiving emails works fine but The problem: (domainname changed) all the emails in the domain are affected by spam with modified header I put the example header from the message delivered to jo...@abc.com.pl which is an alias of real mailbox jo...@abc.pl... more » By the_bat  - Mar 4 - 1 new of 1 message

possible localhost dns spoof attack

Hi Earlier today I noticed a spammer using my Postfix server as a relay to send out spam. This was puzzling because i had all requisite anti relay host settings applied. Further, it was particularly alarming that Postfix seems to be receiving the spam messages from localhost as indicated: connect from localhost.localdomain[127.0.0. 1]... more » By ja...@mailarchiva.com  - Feb 25 - 1 new of 1 message

	sender ip + sender address
	Dear All, Is there any way to check both sender ip + sender address in postfix without using SASL Auth? I would like to allow only from known IP + sender address for mail relay, e.g. use...@test01.com + 192.168.1.1 OK use...@test02.com + 192.168.2.2 OK My current config is mynetworks = /etc/postfix/allowRelay... more » By calvin.f...@gmail.com  - Feb 25 - 1 new of 1 message

	postfix don't show real sender ip
	Hi all, I have postfix use multi instance. one instance listen on one interface. When there is a connection from sender to postfix, I found that postfix log show only the IP of interface that get connection. It's not the real IP of sender. What's wrong? By HỒ MINH ĐẠT  - Feb 23 - 1 new of 1 message

	virtual-regex problem
	Hello, I am having an issue with setting up virtual-regex email redirection. It appears that my wild card redirection is overriding an entry with less specific criteria. Here is what I have in my /etc/postfix/virtual-regex /somename...@somedomain.com/ somen...@gmail.com /.*@.*/ somelocaluser... more » By crush  - Feb 13 - 1 new of 1 message

	smtp timeout ramdomly with postfix and sasl
	Hello, For my proxy server, I use Postfix (submission) with SASL for ldap authentication. Randomly, I can’t send messages: timeout from the client (thunderbird) This is my configuration: Red Hat enterprise linux 5.4 64bits Postfix 2.9.1 Cyrus sasl 2.1.22 I think that the problem is SASL, but I’m not sure.... more » By Sylvain  - Feb 12 - 1 new of 1 message

	Reject messages sent from a given sender to a given recipient domain
	Hi, I know it is possible to deny a given sender or a given recipient. But how to create a rule that checks both? I want to temporarily reject messages sent from apache/php (www-d...@mydomain.ltd) to a given domain (externaldomain.ltd) Should I define some sender dependent transport mapping?... more » By henri.me...@gmail.com  - Feb 10 - 2 new of 2 messages

	Unable to set postfix as smarthost with plain authentication on port 25 (no tls/ssl): error 550 5.1.0 xxxxx authentication failed
	Hi there, I'm using Debian GNU Linux "squeeze", postfix 2.7.1-1+squeeze1 I'm in need of using a smarthost to relay all of my mail. I'm unable to use an italia provider (aruba) as smarthos for my server. I obtain the (in)famous "550 5.1.0 XXXXX authentication failed" relevant part of logs:... more » By larzeni  - Feb 6 - 1 new of 1 message

alias and mailing lists

hello everyone, i've setup postfix + mysql + virtual domains and evertything is working fine. Now i'm wondering how to create and administer some mailing list i need to contact my customers. i googled alot o f time, but didn't find what i'm looking for, i think i can do it simply creating virtual aliases that point to a bunch of real addresses internal or external to my server :... more » By gadanas.ga...@gmail.com  - Feb 5 - 1 new of 1 message