Delay sendmail?

tom at kmem.org tom at kmem.org
Mon May 10 15:39:41 BST 2004


> On Sun, May 09, 2004 at 11:54:00PM +0100, Grant wrote:
>>
>
>> Ummmm yea sounds a good idea about replacing sendmail... but i am
>> not sure if i can... as i was using as part of XMail..... so i
>> assumed i needed it for that...
>>
>> i dont quite follow on that DNS thing you said about, would that get
>> rid of it trying to lookup things at startup even if the network
>> card isnt up yet?
>>
>
> I'll precis what your options are as I see them:
>
> * Configure sendmail so that it doesn't do DNS lookups when started.
>
> * Configure sendmail so that it starts later in the boot process.
>
> * Run a nameserver locally so that the lookups are resolved.
>
> * Dump sendmail for another MTA.
>
>
> I can't help you with 1 because I don't know if it can be done with
> Sendmail. It could be a case of just flushing your queue - it could be
> doing NS lookups because there's a bit of mail wedged in the queue.
>
> 2 probably can be done but I haven't got Sendmail installed so I can
> neither test nor help.
>
> For 3 I suggest running pdnsd. You then don't need a network
> connection to resolve cached addresses and because of that you don't
> need a network connection.
>
> 4 is a decision for you ie. will another MTA meet my featureset. It
> may well do DNS lookups also. Qmail does if it wants to sends mail to
> another host.
>
> What you do is dependent on your skills and your needs and without
> further info it's difficult to recommend any one course of action
> that's best for you.
>
> I'm off cycling now but will be back in the evening if you've got
> other questions :)
>
> Figure out Sendmail problems or go out cycling in the
> sun....decisions, decisions.....;)
>
> --
>
>  Frank
>
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Perhaps just editing  /etc/hosts and putting appropriate entires may help


Tom





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