mail server – Page 2

Postfix Configure Multiple ISP Client SMTP Authentication

March 13, 2009March 13, 2009in CentOS, Debian / Ubuntu, EMail Servers, Fedora Linux, FreeBSD, Linux, Networking, Openbsd, RedHat and Friends, Suse, Troubleshooting, Ubuntu Linux, UNIX last updated March 13, 2009

How do I support multiple ISP accounts in the Postfix SMTP client (smarthost) for relaying email? For example:

[a] [email protected] must be relay via smtp.isp1.com.
[b] [email protected] must be relay via smtp.isp2.com.
[c] [email protected] must relay all my default email via smtp.mycorp.com.

Postfix Configure Client SMTP Authentication ( Smarthost Authentication )

March 12, 2009March 12, 2009in CentOS, Debian / Ubuntu, EMail Servers, Fedora Linux, Linux, Networking, RedHat and Friends, Solaris-Unix, Suse, Troubleshooting, Ubuntu Linux, UNIX last updated March 12, 2009

My ISP requires that mail from my dynamic IP to our small business email addresses uses their outgoing SMTP servers. This is probably done to reduce abuse and spam but now I’m not able to send email and local Postfix log file displays authentication failure message. How do I relay mail through my mail ISP servers using Postfix SMTP under Linux / UNIX like operating systems?

FreeBSD Install FuzzyOCR To Detect Image Spam

January 27, 2009December 20, 2009in EMail Servers, exim mail server, FreeBSD, FreeBSD Jails (VPS), Package Management last updated December 20, 2009

Q. How do I install FuzzyOcr plugin for SpamAssassin to detect unsolicited bulk mail (Spam) containing images as the main content for Postfix mail server?

cPanel: Update Exim Mail Server

December 20, 2008in CentOS, cpanel, Debian / Ubuntu, exim mail server, Linux last updated December 20, 2008

Q. I’m using Cpanel CentOS Linux server. How do I upgrade my exim mail server? How do I update to the latest version of exim under cPanel Sever?

Exim Remove All messages From the Mail Queue

November 19, 2008November 19, 2008in BASH Shell, CentOS, Debian / Ubuntu, exim mail server, FreeBSD, Linux, Monitoring, Networking, Suse, Ubuntu Linux last updated November 19, 2008

Question: I’m using Exim mail server under CentOS Linux. How do I remove all messages from the Exim mail queue using a shell prompt?

PHP Send Email

October 20, 2008in AIX, Apache, CentOS, Debian / Ubuntu, EMail Servers, Fedora Linux, FreeBSD, Lighttpd, Linux, Openbsd, PHP, Programming, RedHat and Friends, Solaris-Unix, Suse, Ubuntu Linux last updated October 20, 2008

Q. How do I send an email using PHP and Apache webserver under Linux / UNIX operating systems? How do I send email from a PHP Script?

DNS Name Resolution

June 12, 2008June 12, 2008in Bind dns, CentOS, Debian / Ubuntu, EMail Servers, FreeBSD, HP-UX Unix, Linux, Networking, Openbsd, RedHat and Friends, Solaris-Unix, UNIX, Windows last updated June 12, 2008

Can you explain DNS name resolution concept? Why I need to set DNS resolution for my Windows or Linux server? How do I setup DNS name resolution under Linux / UNIX server system?

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