On Thu June 10 2010 8:56 am, Vick Khera wrote:
> On Jun 9, 2010, at 6:38 PM, Joey Kelly wrote:
> > I get several errors, but the most obvious one is that I'm sending to too
> > many recipients at one time.
>
> Are they rejecting your mail or just throttling you?
The ISPs are throttling me, but barracuda users are outright blocking me.
> If this is a new IP address from which you're sending, they need to first
> build up some reputation of whether those mails are wanted by their
> customers. Over time, the mail will go through. What you may have to do
> is configure postfix to trickle the mail out to these places, say by
> limiting it to 1 concurrent connection per destination domain.
>
> You do this by setting a transport map to map "yahoo.com" to the transport
> "trickle". Then in master.cf you create a copy of the "smtp" line and
> change "smtp" to "trickle", and then in main.cf you set
> "trickle_destination_concurrency_limit = 1". The postfix list will provide
> more help if you need it.
Ahh... that's what I was looking for... some way to throttle SMTP. Thanks.
>
> Once yahoo/aol/gmail/hotmail get used to your IP, you can bump up the
> concurrency until ultimately you don't need the throttle anymore.
>
> That and using DKIM is a great idea. Just be sure to strip any DKIM on the
> incoming messages first so as not to confuse the remote verifiers.
I was planning on setting up SPF, but the more the merrier.
--
Joey Kelly
Minister of the Gospel and Linux Consultant
http://joeykelly.net
504-239-6550
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