At Sat, 29 May 2021 19:20:21 -0700 Mark Sapiro <m...@msapiro.net> wrote:
> > On 5/29/21 6:34 PM, Robert Heller wrote: > > At Sat, 29 May 2021 18:20:20 -0700 Mark Sapiro <m...@msapiro.net> wrote: > > > >> > >> On 5/29/21 5:52 PM, Robert Heller wrote: > >>> I run a *small* Mailman 2.x server on a VPS running CentOS 7, with > >>> Postfix. I > >>> have one E-Mail list with just under 500 members, about 60 of which have > >>> @yahoo.com addresses and another 15-20 with @aol.com addresses.> > > I'm getting this message: > > > > 421 4.7.0 [TSS04] Messages from 108.161.142.143 temporarily deferred due to > > unexpected volume or user complaints - 4.16.55.1; see > > https://postmaster.verizonmedia.com/error-codes (in reply to MAIL FROM > > command) > > So they apparently don't like the fact that you are sending a message to > 75+ recipients at the same time. > > If you aren't already doing this, I suggest setting > VERP_DELIVERY_INTERVAL = 1 in mm_cfg.py, or if you don't want that, set > SMTP_MAX_RCPTS = 5. I had already had SMTP_MAX_RCPTS set to 10, and I lowered it to 5 yesterday. > > The former will send one message per recipient with a VERPed envelope > sender for better bounce recognition. The latter will send no more than > 5 recipients per message. If the issue is lots of recipients to one > message, these will help > -- Robert Heller -- Cell: 413-658-7953 GV: 978-633-5364 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services hel...@deepsoft.com -- Webhosting Services ------------------------------------------------------ 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/
