Le 04/02/2011 23:54, Gary Smith a écrit : > This is somewhat off topic to the postfix list, but relevant to the community. > > I have a client who sends about 600mgs/week total from their SBS server > through our email relays. The relay IP has a positive reputation and isn't > flagged for spam on any of the lists. Recently they had an issue in which > email they sent to a set of users at ATT never made it to their inbox, but > mail to yahoo users made it just fine. So, digging in the logs, we found that > ATT did indeed accept the email just fine. The typical solution is to have > the user check the spam/trash/search tools for the message, nada. > > Feb 2 13:30:28 hsfremto01 postfix/smtp[31326]: 4F3F882393: > to=<x...@att.net>, relay=scc-mailrelay.att.net[204.127.208.75]:25, delay=1.1, > delays=0.01/0/0.71/0.33, dsn=2.0.0, status=sent (250 ok ; > id=20110202213026s0100mapi5e) > > I did the logical thing in that I put a trouble ticket in with ATT and got > the automated response "Your IP isn't blacklisted". Calling several times, I > never could get to a department that managed (or closely resembled) any type > of tech department. > > Anyway, the question is, how does the community as a whole deal with big > ISP's losing email? It seems that some companies (like ATT) seem to have less > and less access to tools necessary for communicating with them on things like > this. Is there any know lists of contact/support channels out there that > people use for the larger ISP's? > >
unfortunately, there's not much to do on your side. if you know ISP customers, you can try to convince them to complain. and even then, only if "many" customers complain will the ISP do anything. my "rule" is that "network providers" are bad service providers (priorities dictate how help desk acts) and people should get service (email or other) elsewehere. as an example, the major isp here is orange. some time ago, they were a large backscatter source. then they "fixed" that by discarding mail (except if sender is at orange, but that doesn't mean it's not backscatter!).
