laziness, impatience, and hubris | |
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I know very little about the mechanics of sending large amounts of mail, but as a former email admin for a small telecommunications company, I will say that your biggest issue will be to avoid being blacklisted. The problem with blacklisting is if you get on a list, it can be very difficult to get off (SORBS is a holy pain).
Our company provided outbound relays for our customers. Most of our customers were small offices, and hardly anyone sent more than a few dozen mails in an hour. In my case if an IP started using our relays to send much more than 5-10,000 emails an hour, and if the owners of the IP had not contacted us in advance to obtain an exception, they would get shut off automatically. Take home: how you send your mail is at least as important as sending the mail. The care you take to answer all the obvious issues that concern blacklisters will affect your ability to deliver. Blacklisters can be very specific about TTLs on your mail server DNS records, about using a static address, about having a reverse address. Finally, it isn't just you that could get you blacklisted. If the SORBS people decide to shut down the class C you are on, you're going to have to wait until the owner of the class C gets it fixed. In reply to Re: Applying the brakes
by dwm042
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