Likely because I included your IP in a list of examples I sent them. They replied overnight saying they'd unblock. Even though that's not really what I was asking for. Didn't really answer my questions about a misconfiguration or broad blocking. It does seem as though they just decided to block all mail until somebody requests that an IP be unblocked.
As far as T-Mobile being stringent about unblocking, this seems to vary greatly. Perhaps it depends on the reason for the block. So, I'm going to update my blog post with a suggestion that they block first and ask questions later and add a shrug for good measure. Note that T-Online does not use the CSA whitelist (I am reliably informed that they are not fans), so I suspect that is not a reason one might be exempt from blocking. Cheers, Al Iverson On Wed, Jun 10, 2020 at 7:29 AM Michael Rathbun via mailop <mailop@mailop.org> wrote: > > On Wed, 10 Jun 2020 10:43:21 +0100, Graeme Fowler via mailop > <mailop@mailop.org> wrote: > > >I thought I'd do a check on this assertion and it does appear to be accurate. > > I did not contact them (nobody here sends mail in that direction, in any > event) but just now I get 220 rather than 554. > > mdr > -- > My study of life and history inclines me to the apothegm "If you insist on > burning bridges, it is often best to cross them before engaging the > incendiaries." -- Shebardigan > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- Al Iverson // Wombatmail // Chicago Song a day! https://www.wombatmail.com Deliverability! https://spamresource.com And DNS Tools too! https://xnnd.com _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
