Tag Archives: Freebsd

How to capture bad email addresses in mass mail.

Posted by on April 16, 2013 No comments

We have huge project with a great number of registered users. They receive notification via email, when actions occur. (new comment, gift, some other activity). Project targeting – Russia and former USSR In Russia some free email hosting providers like mail.ru delete user account after 2-3 years of inactivity.
So we have now 2-3000000 users with bad email address.
How to find them and remove from mailing list:

According to RFC 5321 (smtp rfc) in case of wrong email in rcpt to, server should return 550 no such user.
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Squid with simple authentication

Posted by on November 15, 2012 No comments

Typical task:
We order server at India, for development needs. Need to setup web proxy with authentication. Use squid, Luke!

#htpasswd -c  /etc/squid/passwd username
#htpasswd  /etc/squid/passwd

squid.conf

forwarded_for off #don`t show user real IP at HTTP headers
auth_param basic program /usr/lib64/squid/ncsa_auth /etc/squid/passwd
<span class="zbench-more-link"> <a href="https://it.randomthemes.com/2012/11/15/squid-with-simple-authentication/#more-193" class="more-link">Read more &raquo;</a></span>

How to solve long queue qmail.

Posted by on May 29, 2012 1 comment

Damn, I hate mail administration… And I really like google apps (gmail) or appriver mail hosting.

Today we have issue with our corporate qmail server, mail stalled.
To be clear – I change job a week ago and just 5 days as I take care of new infrastructure.
Corporate mail server powered by qmail. Thay have zabbix as monitoring software, but not enough configured, without queue monitorind and SMS escalation. Due to great number of urgent tasks, I really have no enough hands to fix all at once…

So Monday begins with great fuckup… 180 000 messages in queue…
First diagnostic steps:
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