Hello,
I wonder if anyone has come across this kind of problem before and if
a solution is available - 
The following member, is a  valid user at the same host 
(techunix.technion.ac.il) in which listserv runs.
Still, from time to time (but not always!) errors of the  'User unknown in 
local recipient table' form are received. The user is indeed defined and exists 
and can receive mail...
I guess this is probably not related to listserv itself, so any hint as to the 
situation that causes this, and ways to remedy it will be welcome!

Thanks!
Moshe


> The following 10 subscribers are currently being monitored:
> 
> Err First Last  Address
> --- ----- ----- -------
>   1 05/22 05/22 User Smart <[log in to unmask]>
>                 Last error: 5.1.1 550 <[log in to unmask]>:
>                             Recipient address rejected: User unknown in local
>                             recipient table
>