Autor: W B Hacker Datum: To: exim users Betreff: Re: [exim] Smart hosting only on some failures.
Brady wrote: > I have an interesting problem that I am hoping people can help with.
> My hosting provided doesn't have any reverse DNS setup for the IP
> range that my dedicated box is in. I know that some admins reject at
> EHLO time because of this even if I have DKIM and SPF setup so rather
> than scrapping the idea of running my mail from my own server I was
> thinking that it might be possible to resend the mail using a smart
> host if it fails at EHLO time on the first attempt. I have no idea how
> to even start this though. There is lots of retry configs but they all
> seem time related. Are there some config parameters that I should look
> at? My only rough idea so far is to have the queue runner use a
> different config than the main process but that sends chills up my
> spine.
ACK. Based on your traffic needs (below) that's just too little gain vs
simply running it ALL over a decent smarthost.
>
> So without that I am forced to use a smart host regardless, but I have
> no idea where to look for a good provider. I need the ability to send
> from any account on my domains at about 100 - 200 messages per day at
> most (usually more like 20). Are there any places that can do this
> relatively cheaply considering I don't need the inbound side?
>
> - Brady
>
At typically 20, peak 200 your connectivity upstream's smarthost is
usually the least-costly and easiest bet.
Though you mention they do not provide PTR RR for connectivity-client's
IP's, that is fairly standard. Some ToS even prohibit runnng an MTA
service (at least outbound).
OTOH, connectivity ISP's ordinarily DO provide a PTR RR for their *own*
mailhost(s) - which are not necessarily even in the same IP block s
their broadband/dial-up pools.