On 9 March 2017 at 15:10, C Mandal <chitta@iitkgp.ac.in> wrote:
> Is a documented qmail solution available for a large number of active users.
>
What is your definition of 'documented qmail solution' ?
For your record, IndiMail has been used for at least 3 million users
(1.2 million active).
Has been used by SBI for its employees. Being used by sites like
matrimony.com, mindtree, Tata Communications.
IndiMail proves an MTA based on qmail, IMAP/POP3 based on
courier-imap, web admin tool. Works with IPV6 and provides TLS, DKIM,
SRS, and almost any feature available in the qmail universe.
It has docker images too so that you can try it out without much
effort. You can try source installation or try the RPM/DEB packages
available on openSUSE build service and the solution works on a
RaspberryPI too.
> Here, the MTA is not the only challenge.
>
> A good web based MUA and appropriate file system is also needed.
>
You can try out roundcube. We use it for all our employees at tagrem.com
> The setup needs to have inherent facilities for recovery and maintenance.
>
You can have a Journalling Filesystem and sufficient RAID or Mirror
(or preferably both) disc arrays to cover you against failure.
--
Regards Manvendra -
http://www.indimail.org