upen put forth on 3/4/2011 9:52 PM:
Hello,
I am in process of setting up an IMAP server (with postfix SMTP), I installed RHEL 5.5 on my server and found that version of dovecot is 1.x.x while when I checked online RHEL 6 is version is 2.x.x.
Can someone please tell me if these two versions are still in development or 1.x.x is very old and must be replaced by 2.x.x version?
Also are there any special features in 2.x.x or 1.x.x that makes it better than other?
You are installing from scratch, thus you should use 2.x. Yes there are new features, and performance is generally better. You just might want to visit: http://wiki2.dovecot.org/ Early 2.0.x versions had lots of bugs so you'll want to get as close to 2.0.10 as possible.
I see similar things for postfix package but I understand this is not the place to ask postfix Qns,
For RHEL 5.5 use Simon Mudd's Postfix binary RPM: http://ftp.wl0.org/official/2.7/RPMS-rhel5-x86_64/postfix-2.7.2-1.rhel5.x86_...
If you have RHEL6 available to you, use it, and save yourself a bunch of grief trying to get current packages. It ships with Postfix 2.6.6 which is modern enough to fit most, if not all, of your needs.
-- Stan