atxl wrote: > Okay, after further discussion and testing, it turns out that the LDAP
> lookup is _not_ the culprit. Any suggestions as to where to look to
> find something which could cause these symptoms?:
>
> Multiple recipients result in the first listed recipient being properly
> delivered, the others go into permanent loop with 'local_domains lookup
> deferred' messages, even when there is no lookup for local_domains (I
> replaced the lookup with a colon seperated list of the local domains
> for the box.)
Maybe a DNS-issue?
Run exim with exim -d9 and show us the relevant parts of the logfile,
this helps much more.