EXCHANGE E-MAIL SERVER

(Exchange 5.5)

LINUX E-MAIL SERVER

(Sendmail as MTA)

Can run only on windows operating system

Dependency: -  Need a windows domain server which will cost additional server license

Can run on any Unix variants

Dependency:-  Needed any Unix  variants server such as Linux, FreeBSd etc which is free to use

Comprehensive corporate E-Mail server with all the subsystems integrated and ready to use out of the box

Difficult to put together various subsystems and configuration to make it a comprehensive corporate messaging server

Various Subsystems in Exch are MTA, IS, DS, SA, IMC, IIS etc

Various Subsystems in Unix E-Mail server are Sendmail MTA for internet e-mail delivery and message routing, Procmail for local delivery, IMAP/Pop3 for client access, SquirrelMail & Apache for webmail access, LDAP for address book etc

Easy to deploy & Administer

Good experience/knowledge is required to setup, But easy to administer

Expensive need to buy Server license and client access license

No License required for E-mail server or Client access.

Exchange – More Than Just Email server
It provides messaging, workflow and collaborative needs. Groupware that enables a group of users to collaborate on a task.

Examples:- Contacts, Tasks, calendar, public folders  etc

Sendmail MTA – Is just a  Email server
It provides a robust messaging service, no collaboration tools

Examples:- messaging, Gateway & relay server

Stable, Reliable, robust in Intranet environment

Reliable, robust, scalable in Intranet & Internet environment

Best as collaborations  & messaging server in a intranet environment.

Best as messaging, gateway, Relay servers in internet & intranet environment.