Topic: Outgoing mail clogged up

[Christo Pretorius]

Hi,

We're running e-smith v3.1. I'd like to know how outgoing mail is processed.
Does it get processed in parallel or in sequence? E.g. If I send out a message
at 8am and the server I'm sending it to doesn't respond, does all the other
messages that we send after 8am wait in line until the 1st message gets
delivered or do they get processed?

Why do I ask? Because it looks like the above mentioned scenario is happening
on our server. We receive incoming mail throughout the day, but our outgoing
mail doesn't get delivered. Our outgoing mail goes to a wide variety of servers
and I find it hard to believe that all of them are down at the same time.

Any information that can give me an indication on why this is happening would
be greatly appreciated.

Regards,
Christo Pretorius

[Gordon Rowell]

Christo Pretorius wrote:

> Hi,
>
> We're running e-smith v3.1. I'd like to know how outgoing mail
> is processed. Does it get processed in parallel or in sequence?

Parallel - up to 20 concurrent remote deliveries.

> E.g. If I send out a message at 8am and the server I'm sending
> it to doesn't respond, does all the other messages that we send
> after 8am wait in line until the 1st message gets delivered or
> do they get processed?

The 20 deliveries are independent, unless they happen to be
going to the same mail relay point (i.e. the IP address of the remote
mail server is the same).

> Why do I ask? Because it looks like the above mentioned
> scenario is happening on our server. We receive incoming mail
> throughout the day, but our outgoing mail doesn't get
> delivered. Our outgoing mail goes to a wide variety of servers
> and I find it hard to believe that all of them are down at the
> same time.

Check /var/log/qmail/* - the latest file in that directory will show
you what is happening.

Run /var/qmail/bin/qmail-qread to see what's in the queue.

> Any information that can give me an indication on why this is
> happening would be greatly appreciated.

Gordon

[Christo Pretorius]

Thanks.