> My IP address is dynamic. Maybe hotmail is blocking
> receipts of email from dynamic ips.
I wouldn't blame them. I certainly do. Most mail administrators do. Don't
expect to be able to send e-mail from a dynamic IP address unless you are
routing it to the mail gateway provided by your ISP.
For the most part, people using dynamic IPs should get some sort of
rejection notice, such as the one you received:
> (Mail1160576971332-238-!948658-to-trumpetguy.com:
> javax.mail.SendFailedException: Invalid Addresses;
> nested exception is:
> class javax.mail.SendFailedException: 451
> Dynamic/Residential IP range listed by NJABL dynablock
but if you are in a subnet that is annoying enough, you may find that you
cannot connect at all. For example, I have about 500 (and growing) of the
most egregious subnets blocked at the firewall, so that legitimate senders
can connect.
> Maybe the retries are holding up all the other mail.
Possibly, but that depends on a number of factors, and JAMES will generally
just queue up what it can't deliver for now, and come back to it later. How
many threads do you have for outgoing mail? You may find that having more
of them helps.
--- Noel
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