Would removing the allow_fail help any?
> I have this in exim.conf for aliases:
>
> drop_solo_alias:
> driver = redirect
> allow_defer
> allow_fail
> data = ${if
> exists{/etc/virtual/$domain/aliases}{${lookup{$local_part}lsearch{/etc/virtual/$domain/aliases}}}}
> file_transport = devnull
> group = mail
> #pipe_transport = virtual_address_pipe
> pipe_transport = devnull
> retry_use_local_part
> #include_domain = true
>
>
> Occasionally one of the email addresses inside an alias will be over
> quota generating an annoying bounce. The email addresses over quota
> will be listed in /etc/over_quota_email. Is there a way to have this
> skip attempting to deliver to any email addresses listed in that file?
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