Need help in linux email server

[Susquehannock]

In a persistence of Linux series looking at building a Linux email server, I need help on communications and building e-mail server architecture. Is the Managed vs. outsourced e-mail explanation are forever in debate. As always together have pros and cons, but throughout the editorial can I determine to go for a managed explanation and build an e-mail server step by step.

[Sabastiaan]

A Mail Transfer Agent (MTA) is an agenda which recognize and sends e-mail messages from the Internet. A Mail Delivery Agent (MDA) on the additional hand permits your employees to send and take delivery of e-mails from supplementary locations. Consequently, implementing a MDA is fundamentally building a POP3/SMTP server.

[Visala28]

In view of the fact that retrieving messages from the Internet is the key, you must first set up a Mail Transfer Agent. Dissimilar allocations have dissimilar defaulting MTA, for illustration Ubuntu and openSuSE have Postfix as the defaulting MTA, whereas Red Hat implements Sendmail. The arrangements of the programs are additional or less the similar for the experienced users, but for the sake of easiness, you determine to take for granted an Ubuntu Server installation with Postfix to get you going without changing the defaulting MTA arrangement.

[teenQ]

You have to create a note of your computer mail name. You determine to presuppose mailserver.mycompany.com and in addition you are able to send/receive mails from mycompany.com, localhost.mycompany.com, and localhost. The address for localhost is 127.0.0.1 with Netmask 255.255.255.0 (127.0.0.1/8 for short.) The easiest method to arrange Postfix determines to be to go through the /etc/postfix/main.cf file. Previous to changing anything, back up the arrangement file with cp /etc/postfix/main.cf /etc/postfix/main.cf.old so to facilitate if you mess something up, you be able to simply revert to the innovative file.

[Candace]

Subsequent to you complete the tasks with the MTA, you determine to go on with the Mail Delivery Agent. You determine to utilize Dovecot for this purpose. To organize Dovecot, you determine to edit the arrangement file in /etc/dovecot.conf. You determine to again create a back up to be safe with cp /etc/dovecot.conf /etc/dovecot.conf.old. To generate your users’ lives easier, your determine let them to utilize UNIX username and passwords as their e-mail username and passwords. For this, you determine to go with the Pluggable Application Modules (PAM) and authenticate the users by checking their shadow passwords.

[Carley]

If you are working a diminutive business, I absolutely recommend you to outsource your e-mail management. In-house e-mail management sounds too superior to be accurate but maintain in mind that the probable downtimes that determine to happen which determine to be unbearable. Add customary e-mail backups to this image and you determine to be starting a extremely complicated and extremely expensive adventure.