It is getting time for the Postfix 1.2 release. As usual, this
release evolves from the series of snapshots that were released
over the past year. Snapshot 20021202 is the latest.

Part of the work is polishing. If you found major ommissions or
inconsistencies in the documentation of recent snapshots, now is
a good time to let me know.

The other part of the work is deciding what snapshot features are
good enough for version 1.2, and what old features need to go away.

Sofar I am looking at the following:

change hash_queue_depth default

    The default depth of 2 subdirectory levels makes mailq
    unnecessarily slow for most sites. I am inclined to make the
    default 1, which sucks when your site has lots of mail queued.

deprecate check_relay_domains

    This restriction should go away. As of version 1.2, any use of
    check_relay_domains should produce a warning and suggest using
    "reject_unauth_destination" instead, and this feature should
    be removed from the documentation.

change smtpd_recipient_restrictions default

    As of version 1.2, replace the default from "permit_mynetworks,
    check_relay_domains" by "permit_mynetworks, reject_unauth_destination".

keep HOLD/DISCARD actions

    I'm inclined to include these in the 1.2 release, even though
    their use in smtpd_xxx_restrictions is currently limited to
    access maps.

keep qmgr_clog_warn_time

    I'm inclined to include this in the 1.2 release. When this
    parameter setting is non-zero, the Postfix queue manager warns
    when mail for some destination is piling up in the active queue,
    and suggests a variety of remedies to speed up delivery (increase
    per-destination concurrency limit, increase active queue size,
    use a separate delivery transport, increase per-transport
    process limit). The heuristics and recommendations are a bit
    questionable, but I haven't heard any complaints, which means
    either people don't read their logs or the suggestions actually
    help.

snapshot only: sender-based routing

    I'm inclined to not include this in the 1.2 release. With
    sender_based_routing=yes, Postfix will choose the delivery
    transport and "nexthop" host by looking at the sender address
    instead of the recipient.

If you found other problematic default settings or features in
recent snapshots, now is a good time to let me know.

The transition from snapshot to stable release is not the time for
feature requests. New features must be field tested in snapshots
before they can become part of the stable release.

Looking forward for your feedback.

        Wietse

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]