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vpostmaster and Centos 6

Frontending an exchange setup I assume that I dont have to use POP or IMAP, that I can just filter and have the mail delivered via the vpostmaster to exchange. I’m not intimately familiar with...

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System Hanged – No Info In Logs.

I had today a problem with my mail server (2.6.18-274.12.1.el5 #1 SMP Tue Nov 29 13:37:35 EST 2011 i686 i686 i386 GNU/Linux, CentOS release 5.7 (Final)). On my Cacti graphs I see that there has been...

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An Assortment Of Mail Serving Issues

I moved to a new CentOS6 install after an old CentOS5 server started exhibiting problems. I am having mail serving issues and they are confusing. I am seeing both Sendmail and Zimbra issues. We front...

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An Assortment Of Mail Serving Issues – PARTIALLY SOLVED

OK, I solved this, partially. It turns out that this is ‘nearly always caused by a host that is configured on private IP Space (or using NAT) and that does not have an interface for the public IP...

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Does SMTP Connection Drop When Posfix Reload is Issued ?

I work with ISP, we host email service for almost 500+ companies and 200+ mail servers relay through my smart host. I implemented something that when our smart host would become blacklisted. It will...

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SELinux Prevents My PHP Script From Sending Mail

I maintain an amateurish email list for my wife’s website on my CentOS 6 server. Once-a-month, she sends mail to “mylistaddr@mydomain.com” and the /etc/aliases file redirects that to my script:...

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Cyrus-imapd Update From 2.2.12 To 2.3.16

We are trying to move our mail store from a host running cyrus-imapd 2.2.12 under CentOS-4 to one running 2.3.16 under CentOS-6. The current host is a 32 bit architecture. The new host is 64 bit. We...

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Sendmail Problem – Baffled

Our backup mail server (which I have just re-configured) tries to contact the primary mail server, and fails. My log shows repeatedly ”connection refused”: May 15 22:21:41 mx2 sm-mta-rx[8674]:...

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How To Handel SMTP To Public Servers

You could get your firewall ACCEPT but LOG the outgoing 25 from anything but your mailhub. Have often wondered whether a transparent mail-proxy could be set up, similar to a transparent web-proxy, with...

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Procmail/Formail Problem On 6.3

Hi!In the process of making mysystem work again, having just done a reinstall of 6.3 x86_64.I have a considerable collection of procmail recipes for filtering mail in various ways, and since the...

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