Thank you David , Yes that is what i am talking about . that is the "strange" part ,how so many people close the email every NL .
On Thu, Jul 5, 2018 at 3:52 PM, David Hofstee <opentext.dhofs...@gmail.com> wrote: > Hi Emre, > > My 5xx bounce rate is around 0.2% for these domains. The domains have not > gone inactive. Some spam filters reply with such 5xx errors to fend off > spam. I haven't seen that @orange yet (but a large Belgium provider does it > infrequently). > > @Philip (and Mathieu): The point that Emre is making is: > - You send to e.g. a 1000 recipients one week. These recipients download > images and click on links (e.g. 40% open rate and 5% click rate). > Conclusion: Recipients are real and active. > - The next week *all* these recipients suddenly bounce and are > deactivated on his lists due to a "550 5.1.1 Adresse d au moins un > destinataire invalide. Invalid recipient. OFR_416 [416]"... Across all > customers. > > That is not how normal recipients, people, stop using their email > accounts. Not at such rates. Some other process is going on. One would like > to find out what happened. He is asking himself if the domain has gone out > of business (which is not the case). > > Yours, > > > David > > On 5 July 2018 at 13:51, Suresh Ramasubramanian <ops.li...@gmail.com> > wrote: > >> For a 1990s throwback, here is the website for xmailserver >> >> http://www.xmailserver.org/ >> >> On 05/07/18, 4:56 PM, "mailop on behalf of Benoit Panizzon" < >> mailop-boun...@mailop.org on behalf of benoit.paniz...@imp.ch> wrote: >> >> Hi Erme >> >> I've seen similar problems with ISP using, as I recall, something >> sounding like 'xmailserver' as SMTP Server. >> >> That Server has a very serious bug, instead of rejecting invalid >> recipients during the 'rcpt to' handshake, it does this after 'data' >> has been initiated by issuing a human readable message telling what >> recipient was invalid. >> >> This of course breaks all mailing lists or newsletter tools which send >> emails to as many recipients as possible to lower resource >> consumption. >> >> If one destination address becomes invalid, this leads to mass >> unsubscription of valid email addresses on tools like mailman. >> >> So Maybe France Telecom switched to such a mailserver? >> >> Mit freundlichen Grüssen >> >> -Benoît Panizzon- >> -- >> I m p r o W a r e A G - Leiter Commerce Kunden >> ______________________________________________________ >> >> Zurlindenstrasse 29 >> <https://maps.google.com/?q=Zurlindenstrasse+29&entry=gmail&source=g> >> Tel +41 61 826 93 00 >> CH-4133 Pratteln Fax +41 61 826 93 01 >> Schweiz Web http://www.imp.ch >> ______________________________________________________ >> >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >> >> >> >> >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >> > > > > -- > -- > My opinion is mine. > -- *EMRE ÜST* Technical Support Team Leader *t.* +902123430739 *f.* +902123430742 *email: *emre....@euromsg.com <%23> *skype:* *web:* euromsg.com <http://www.euromsg.com/?utm_source=email-signature&utm_medium=email> Yeşilce Mh. Yunus Emre Cd. Ada İş Mrk. No: 4 Zemin Kat 4. Levent / İstanbul <http://www.linkedin.com/company/euro-message> <https://www.facebook.com/euromessage> <https://twitter.com/euromessage> <http://blog.euromsg.com/> <http://www.relateddigital.com/> <http://www.euromsg.com/?utm_source=email-signature&utm_medium=email> <http://visilabs.com/?utm_source=email-signature&utm_medium=email> <http://www.semanticum.com/?utm_source=email-signature&utm_medium=email> <http://madebycat.com/?utm_source=email-signature&utm_medium=email> <http://www.relateddigital.com/?utm_source=email-signature&utm_medium=email>
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