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This finally get me to the point of understanding the "bad neighbor" signal that probably get my personal email (and some of my jobs) rejected from Gmail. Read

This finally get me to the point of understanding the "bad neighbor" signal that probably get my personal email (and some of my jobs) rejected from Gmail. Reading the thread was very instructive, but the most irritating point is that this rejection is mostly silent even if you send only 20 mail a week from your email address and all DKIM & all are in place. Lots of pedantic comment in this thread however, it seems that nasty provider are well known by experts, but for the love of internet, please spread your mighty feedback to small-folk so that we can act accordingly. Gonna open a ticket at my provider OVH (now I know).

tobias3 7y ago
Ok, so the way OVH can solve the problem is the same way e.g. Amazon SES solves the problem. 1. They block all outgoing mail (outgoing 25, 465 and 587) and only open it up once you have submitted a ticket where you decribe for what purpose and how often you want to send mail (if you start off wanting to send a million mails per week they won't open outgoing mail at all). Manually review of those tickets is required so that bad actors can't get through. Difficulty of getting through the review needs to be adjusted upwards till it is too much work for bad actors (and they switch to another provider). 2. Monitor bounce-backs and have a spam reporting form for OVH IP ranges. Start blocking outgoing mail pretty soon if a small number of those arrive. Of course this is a cut-throat business ("email marketing"/spam), so competitors may submit false spam reports... 3. Therefore, for (2) you'll have to keep some records of the mail sent, i.e. you'll require mail to be send via relay... The review and the mail relay costs something, so you make it a monthly/per mail cost. Voilà, you have Amazon SES. Currently they probably block individual instances if they get a lot of complaints about one sending a lot of spam. They can't distinguish legitimate mail from spam because it is all SSL encrypted.
- Twisell 7y ago
  Until now I trusted them so I use their own email servers. They are perfectly aware of my usage since while sending they even implement a trick so that one can't send bulk email from their SMPTP. And that's why I now fear they are utterly incompetent...
- pera 7y ago
  I don't think OVH really cares about this to be honest: search for "OVH spam abuse reports" to get an idea :p

tobias3 7y ago

Ok, so the way OVH can solve the problem is the same way e.g. Amazon SES solves the problem. 1. They block all outgoing mail (outgoing 25, 465 and 587) and only open it up once you have submitted a ticket where you decribe for what purpose and how often you want to send mail (if you start off wanting to send a million mails per week they won't open outgoing mail at all). Manually review of those tickets is required so that bad actors can't get through. Difficulty of getting through the review needs to be adjusted upwards till it is too much work for bad actors (and they switch to another provider). 2. Monitor bounce-backs and have a spam reporting form for OVH IP ranges. Start blocking outgoing mail pretty soon if a small number of those arrive. Of course this is a cut-throat business ("email marketing"/spam), so competitors may submit false spam reports... 3. Therefore, for (2) you'll have to keep some records of the mail sent, i.e. you'll require mail to be send via relay... The review and the mail relay costs something, so you make it a monthly/per mail cost. Voilà, you have Amazon SES. Currently they probably block individual instances if they get a lot of complaints about one sending a lot of spam. They can't distinguish legitimate mail from spam because it is all SSL encrypted.

Twisell 7y ago
Until now I trusted them so I use their own email servers. They are perfectly aware of my usage since while sending they even implement a trick so that one can't send bulk email from their SMPTP. And that's why I now fear they are utterly incompetent...
pera 7y ago
I don't think OVH really cares about this to be honest: search for "OVH spam abuse reports" to get an idea :p