Hello, I've been having some issues lately. We are using Mailman 2.1.15. I've looked over the FAQ but the only thing that I could find is to contact the ISPs and ask to be whitelisted - am I understanding this correctly? Here is a brief description of the issue:
Our server hosts 5 listserv, the biggest one counts over 530 subscribed members from 55 different countries. We had received sporadic bounces triggered by emails sent to these lists since the install of the server in 2016, but in the last months the number of bounces we get has increased. We receive these bounce notifications informing us that the given *subscription has been disabled* due to *excessive or fatal bounces *(up to around 30 bounce notifications triggered by a single email sent to one of the listservs). Every time we get such notifications, we untick the bounce under “nomail [reason]" in the admin management site for each of the email addresses that haven been disabled by the system. Furthermore, it has happened several times in the past few months that a number of email addresses have been automatically removed from the listservs (at the same time, from different countries). We have not found an explanation for why this happens or a solution, so the only thing we are able to do is to manually add them back to the listservs. We have also asked these colleagues for which we have received bounces to check whether there is anything blocking the listservs’ emails from their side (note that many of them work in ministries or agencies with strong security features), and to add the server IP to the white list, but the problem persists. Thank you for your time, Florin Pasăre, ------------------------------------------------------ Mailman-Users mailing list -- mailman-users@python.org To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/ Member address: arch...@jab.org
