On 2008-09-25 at 10:33 +0200, Ian Coetzee wrote: > I have here a small but irritating problem. > > We carry a huge number of emails through or exim server (about 500 > user's worth). > > The problem is our ISP rejects our mails at 200 recipients/hour with a > 554 error message, and that the exim then sends an mailer-deamon to > the sender. > > Is there a way I can tell exim not to drop the mail, but keep resending it?
Downgrade 5xx to 4xx? No. If your mail is legitimate, ask your ISP to raise the throttle limits for your email. Any competent ISP will know that different customers have different mail-sending behaviours and that some customers will legitimately send more mail than any default cap picked to be worthwhile. So just talk to them and discuss what an appropriate rate limit is for your account. If you just resend repeatedly then you hurt your chances of mail making it out, as your connect rates go up. If you rate-limit client-side then you won't know how long a given mail will take to leave your realm of responsibility (unless you look) since a few hours of high volume will delay mail until the evening. Since this is presumably mail which people care about, being legitimate, that's unlikely to be acceptable. So, talk to the ISP. If you get nowhere with them and they list your own IP space as dial-up/DSL/residential so you can't send email directly without high probability of your mail being discarded, then you're in a situation where you depend on being able to send X amount of mail through your ISP and the ISP won't co-operate (or wants to charge an amount of money that you're not willing to pay). At that point, you search for a new ISP. -Phil -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
