Dear friends

[Gunnar Wrobel]

"rajnish kumar" <kumarrajnishgupta at gmail.com> writes:

> I have some confusion about postfix performance, if I am an ISP and
> with 20,000 user's with postfix, Is postfix  is capable to do this
> pretty things. Has any one has experiance to working with postfix in
> heavy load

http://www.postfix.org/press.html

http://www.linuxjournal.com/article/7323



>
> with redgs
> rajnish
>
>
> we have some discussion with Mr Alain Spineux
>
> me: should we ask some ?
>  Sent at 7:48 PM on Tuesday
>  Alain: some what ?
>  me: thnx
> regarding postfix
> i want to established a MTA with 20000 user's shoud i go with postfix
>  Alain: What else ? [nose smile]
>  me: qmail
>  Sent at 7:52 PM on Tuesday
>  Alain: Qmail was probably a good peace of sofware in 2000 and before.
> But it's no more developped since (I things)
>  Sent at 7:54 PM on Tuesday
>  Alain: postfix is actively maintained by Wietse and actively
> supported on the mailing list ! Very actively supported !
> Postfix is also a good piece of software.
>  me: that's good, would you think that postfix is capable to bear load
> of 20000 usre's with heavy load
>  Sent at 7:57 PM on Tuesday
>  Alain: Yes ! (But I dont have experience with so much users).
>  Sent at 7:59 PM on Tuesday
>  Alain: You will probably use other component "weaker" than postfix,
> AV, imap server ... Or is it a SMTP relay only ?
>  me: yes i am using kolab2 right now but only with 1500 usre's but it's too slow
>  Sent at 8:01 PM on Tuesday
>  Alain: But postfix is not the bottleneck, AV and SPAM checking are
> very CPU and IO consuming ! Then cyrus, if using IMAP is probably
> using more load than postfix !
>  Sent at 8:04 PM on Tuesday
>  Alain: Also kolabd can use some CPU when checking all LDAP entry
> (depending the kolab2, 2.0 or 2.1 ) also  lot of PHP script are used
> by postfix, in kolabfilter, policies, ...
>  me: AS per i know kolab is not working in distributed enviroment if
> it works then still mails not send locally means directly one server
> to another. because kolab does't have fearure of mailHost
> or you are right
> yes you are right
>  Sent at 8:08 PM on Tuesday
>  me: if you don't mind could i send this query in <kolab-users at kolab.org>,
>  Sent at 8:10 PM on Tuesday
>  Alain: Kolab dont need distributed features in itself, all kolab
> component can be distributed on different server : postfix, cyrus,
> ldap, amavis can all be on a different server. You can have multiple
> instances of each of them . Also ldap and cyrus have some replication
> feature to help to distribute the load on multiple server !(but
> leaving a little more the kolab integration)
> Yes publish the all discussion
>
> _______________________________________________
> Kolab-users mailing list
> Kolab-users at kolab.org
> https://kolab.org/mailman/listinfo/kolab-users

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p at rdus Kolab work is funded in part by KDAB and the Kolab Konsortium

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E-mail : p at rdus.de                                 Dr. Gunnar Wrobel
Tel.   : +49 40 432 72335                           Bundesstrasse 29
Fax    : +49 40 432 70855                            D-20146 Hamburg
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