Juerd Waalboer > Qmail-Deliverable-1.07 > qmail_deliverable


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qmail_deliverable - Check that the recipient address is deliverable


See the description of Qmail::Deliverable.

This qpsmtpd plugin uses the client/server interface and needs a running qmail-deliverabled. If no connection can be made, deliverability is simply assumed.

The modules LWP (libwww-perl) and HTTP::Daemon, available from CPAN, are required for qmail-deliverabled and Qmail::Deliverable::Client.


server host:port

Hostname (or IP address), and port (both!) of the qmail-deliverabled server. If none is specified, the default ( is used.

server smtproutes:host:port

If the specification is prepended by the literal text smtproutes:, then for recipient domains listed in your /var/qmail/control/smtproutes use their respective hosts for the check. For other domains, the given host is used. The port has to be the same across all servers.


    qmail_deliverable server smtproutes:

Use "smtproutes:8998" (no second colon) to simply skip the deliverability check for domains not listed in smtproutes.

vpopmail_ext [ 0 | 1 ]

Is vpopmail configured with the qmail-ext feature enabled? If so, this config option must be enabled in order for user-ext@example.org addresses to work.

Default: 0


Given a null host in smtproutes, the normal MX lookup should be used. This plugin does not do this, because we don't want to harrass arbitrary servers.

Connection failure is *faked* when there is no smtproute.


This software is released into the public domain, and does not come with warranty or guarantee of any kind. Use it at your own risk.


Juerd <#####@juerd.nl>


Qmail::Deliverable, qmail-deliverabled, Qmail::Deliverable::Client

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