Ian C. Blenke wrote:
> Paul M Foster wrote:
>> Folks:
>>
>> I'm getting a tremendous number of bounces out of Verizon, and have
>> for a few days. (A "bounce" in this case is an email sent from the
>> list which can't make it to the intended recipient and comes back to
>> the sender, in this case NKS, and ultimately to me.) This encompasses
>> a variety of mailservers in the Verizon stable.
>>
>> Anyone know why this is happening?
>
> The bounces should give you some clue into what is happening
> (destination unreachable, mailboxes full, etc etc).
>
> Can you share any specific examples?
What follows is the type of error returned. The error is always a 450,
and each email gives 20-30 addresses, all Verizon addresses. The
mailserver differs, though:
(reason: 450 Requested mail action not taken-Try later:sv20pub.verizon.net)
(expanded from: include: /opt/majordomo/lists/slug)
As near as I can figure, the emails that generate these responses are
valid list emails (not spam). As a 450 error, it seems to be temporary
condition.
One possible explanation is something I've heard of before, involving
"metering" connections to slow them down and put off spammers. I don't
recall what the technique is called, and I kind of doubt an error would
issue from doing this.
In any case, the question is whether anyone knows of 1) a problem with
Verizon mailservers, or 2) some config change they made, causing this.
Paul
-- Paul M. Foster ----------------------------------------------------------------------- This list is provided as an unmoderated internet service by Networked Knowledge Systems (NKS). Views and opinions expressed in messages posted are those of the author and do not necessarily reflect the official policy or position of NKS or any of its employees.
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