[Mailman-Users] Bounce issues with Yahoo - resolved

[Greg Lindahl]

FYI, it turns out that the biggest reason Yahoo was hoding up my
emails was that my reverse DNS and the name of my mail server didn't
look enough alike. When I changed them to be the same, my backlog
quickly cleared.

I also have a backlog with verizon.net, see

http://blog.kloppmagic.ca/archives/2005/02/24/verizon-450-requested-mail-action-not-taken-try-later-error/

That post is a bit old, I'm not sure what Verizon is doing right now,
but the upshot is that spam emails are getting 450 responses instead
of 5XX responses.

Verizon also has a spam policy which affects mailing lists:

http://www2.verizon.net/policies/spamming.asp

To whit: 100 recipient max for single messages, 500/hour. I don't know
if that's per from line or per server, probably the latter. Exceeding
500/hour shuts off emails for 24 hours.

You can request to go on their whitelist at:

http://www2.verizon.net/micro/whitelist/request_form.asp?id=isp

Since these issues are common to different mailing list managers, is
there a website that contains this kind of info? If not, should we
make one and advertise it to other mailing list communities?

-- greg