From what we have learned, the connection limits are really important. Their policies are:
- Maximum 3 concurrent connections per IP. - 1000 connections per hour - 100 messages per connection Note that the limit of 3 concurrent connections is from IP to MX, so connections for wanadoo.fr <http://wanadoo.fr/> and for orange.fr <http://orange.fr/> add up. In PowerMTA this setting would do the trick: mx-connection-limit smtp-in.orange.fr 3 Orange is a member of Signal Spam, and reports complaints back to senders via Signal Spam. You can get insight into complaints per IP per day by becoming a Signal Spam member. Hope this helps. Maarten Oelering Postmastery > On 20 Dec 2016, at 20:52, Karen Balle <kba...@rcn.com> wrote: > > Nic, > > Orange has a concurrent connection limit of 3, but some of their MTAs sit > behind a NAT and have multiple external IPs. We've had to set our concurrent > connections to 1, which has helped immensely. If that doesn't work out, drop > me a line and I'll see if I can get a better contact for you. > > Karen > > On Mon, Dec 19, 2016 at 8:22 AM, Webb, Nic via mailop <mailop@mailop.org > <mailto:mailop@mailop.org>> wrote: > Hello: > > > > I’m trying to reach someone at Orange. Over the last 4 days, we’re seeing a > significant number of throttling messages (around 300,000 over the last 24 > hours) like the following: > > > > 421 mwinf5c07 ME Service refuse. Veuillez essayer plus tard. Service refused, > please try later. OFR_999 [999] > > 421 mwinf5c86 ME Trop de connexions, veuillez verifier votre configuration. > Too many connections, slow down. OFR004_104 [104] > > > > We’re doing our throttle back our connections, but it’s at the point where I > have hundreds of recipients at Orange / Wanadoo domains reaching out to us > wondering where their transactional mails are – they’re seeing delays of over > 12 hours. > > > > Emails to postmaster@ are returning “552 5.2.2 Over quota” which leads me to > believe my attempts to contact over the weekend are not going through. > > > > I’ll happily take this conversation off-list. Thanks! > > > > --- > > Nicolas Webb > > Email Postmaster > > Amazon Simple Email Service (SES) > > > > > > > > > _______________________________________________ > mailop mailing list > mailop@mailop.org <mailto:mailop@mailop.org> > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > <https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop> > > > > > -- > Love is strong yet delicate. > It can be broken. > To truly love is to understand this. > To be in love is to respect this. > ~ Stephen Packer ~ > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
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