[BlueOnyx:25900] Re: sendmail issue with fairly new 5210R server

[Larry Smith]

Chris,

  Yes, in several of the cases it happens to be two domains
that I host (on separate BlueOnyx boxes) so I can verify
the error from both servers - a "User unknown" for an
existing user (that is not over quota for user or site).
And it is only this one 5210R that is doing it.

-- 
Larry Smith
lesmith at ecsis.net

On Fri January 6 2023 10:15, Chris Gebhardt - VIRTBIZ Internet wrote:
> Hi Larry,
>
> On 1/6/2023 9:55 AM, Larry Smith wrote:
> > Everything will work fine for hours, then suddenly
> > a single user on this domain will get the "User unknown"
> > error and that message is bounced, then it will
> > likely work fine for hours again or may fail several
> > times.
>
> It's quite strange that it would work for a period of time, and then
> suddenly quit working.   Are you able to verify the error message on the
> server log matches up with the delivery failure notification you
> receive?  ie: making sure it's all coming from the same server... I've
> seen this where customers have "split brain" setups (ie: email is hosted
> on a different VSITE or server than the www) and mail is sent to the
> wrong VSITE.