On 7/22/22 8:49 AM, Laura Atkins via mailop wrote:
That’s normal practice as far as I’m aware. If an address bounces the ESP prevents the sender from mailing to it in the future. There are some ESPs that don’t (and they know how I feel about their practices). I’ve also heard complaints from ISP representatives about ESPs that do this and make it impossible to troubleshoot why their customer isn’t getting the mail they asked for.
I have an bad example of this. My company opened a thousands-of-dollars-a-year account with a large company, and apparently this company does all their transactional mailing through a certain well-known ESP.
I got none of it, and nobody could figure out why for a while. It finally turned out that the ESP had added our entire domain name to some sort of global blocklist they have, solely based on my complaints that the ESP was letting their customers repeatedly send spam to our role addresses like support@, billing@, and info@. (The address the large company was trying to send to was not one of those addresses.)
Worse, their global blocklist acted as a black hole for mail, where nobody was notified of the problem.
This is a good example of how many ESPs are just really not trying even the most basic stuff. Rather than add a check to say "hey, our customer's importing a list that has lots of role addresses, that's unusual, let's check it out", they instead just maximally listwashed me so I would stop complaining about it.
-- Robert L Mathews _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
