[PLUG] Good smtp setup

Shyamgopal Kundapurkar kundapurkar at gmail.com
Thu Sep 8 22:55:31 PDT 2011


I dont know if this helps:

I worked on Zimbra 7 on RHEL for last 15 days.
Zimbra uses Postfix as an MTA. (You may need to additionally install/config
DNS server for a DNS domain in question.)
Zimbra gives you simple(r) command line interface to its Postfix MTA
configuration to allow mail relay.
I strongly suggest you dont allow unauthenticated relay on MTA unless MTA is
inside a firewall. Otherwise your MTA will get blacklisted in no time.
If MTA is inside firewall, allow unauthenticated relays on it, and allow
connections to port 25 ONLY from local IP addresses ( like

shyam ....

On Thu, Sep 8, 2011 at 9:12 PM, Mayuresh <mayuresh at acm.org> wrote:

> Wondering what will be a good smtp setup for a desktop machine given some
> needs expressed below:
> 1. Client invokes sendmail:
> Generally acceptable and perhaps most common setup. For large mails
> sometimes the remote server interaction hangs. There is no reliable queue
> mechanism.
> Feel much comfortable if the moment you say "send" the mail goes to a
> local queue and a daemon keeps track of it till it is sent. If it could
> not send it, it returns it back to you.
> 2. Postfix (or any good smtp daemon):
> Meets above mentioned requirements. Only problem is your username and
> password to authenticate to relay host needs to be supplied once as root.
> There is no client side way of doing this.
> Trying to find a way by which relay authentication information is
> configurable entirely on client side (without having to use root login)
> while achieving all benefits that the smtp server provides.
> Somewhat like postfix with authentication information (hash map files in
> case of postfix) allowed to be maintained by individual non root users.
> Mayuresh.
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