Matt, Visit https://help.yahoo.com/kb/postmaster/, probably clicking the “new sender application” option would trigger a ticket to yahoo. Someone there should be able to help.
U On Sat, Jan 12, 2019 at 4:19 PM Matt Hoppes < mattli...@rivervalleyinternet.net> wrote: > Our customers who use yahoo.com e-mail addresses are saying they aren't > receiving invoices from our billing system. I checked our mail logs and > I'm getting this: > > Jan 12 16:11:34 account postfix/smtp[9802]: 1FA906C0E61: host > mta7.am0.yahoodns.net[98.136.101.117] said: 421 4.7.0 [TSS04] Messages > temporarily deferred due to user complaints - 4.16.55.1; see > https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM > command) > > The link suggests several things to do and we've waited over 48 hours > and still can't get invoices through. > > The invoice server is definitely not compromised, and honestly I can't > imagine there would be enough complaints to trigger a global block of > that IP address, and we only have a small number of customers using > @epix.net e-mail addresses. > > Thanks! >
