[Mimedefang] md_check_against_smtp_server and down server?

[Kayne Kruse]

Just a quick question, a quick search didnt render any hits.

In the situation as described on:
http://www.mimedefang.org/kwiki/index.cgi?RelayCheckAddresses

What happens during this check if the remote smtp server is down?  

Would it tempfail the message or outright bounce?

If it  tempfails, its an easy solution to a previously complicated ldap
export and reformat.  

Im trying to determine if I should query our internal mail server for
actual valid addresses live if this can tempfail, or just use a file
based db and export out the address via ldap.  

Kayne