Ajcody-MailingLists-And-Mailman

Mailing Lists, Distribution Lists, And Mailman

Actual Mailing Lists And Mailman Notes Homepage

Please see Ajcody-MailingLists-And-Mailman

Introduction And Choices

If you are planning to use a distro list of over 60K members, you may be inclined to use a dedicated machine for this purpose. According to bug 19153, you have 2 options: "set up mailing list manager or change the value of virtual_alias_expansion_limit as a customization. We have never tested with > 1000 so this should be done carefully, and will pound LDAP for any messages with lots of recipients." Mailman integration is an option. There is a forum thread on how to integrate zcs and mailman. This would be the preferred fix to your issue, also noted in the bug report. We probably won't see Mailman integration in ZCS at least for another year or so, not until 6.0

Restricting Who Can Send To Mailing List

Please see:

Restrict Sending To Certain Domains

Please see:

Add Everyone To Distribution List - Admin Console

RFE was made for this:

Problems Resolving Virtual Aliases For Members Of Large Distribution Lists

See the following bug:

Other wiki page is here - Error_(MTA):_unreasonable_virtual_alias_maps_map_expansion_size

The default expansion that will be done is for 1000 accounts.

Solution

Note, the bug above recommends NOT going over 1000 due to ldap performance. They recommend looking into mailman as an alternative.

Increase the virtual_alias_expansion_limit Postfix parameter to the value of the highest number of distribution list members. All commands run as the zimbra user.

Check configuration

$ postconf virual_alias_expansion_limit

Set configuration

$ postconf -e virtual_alias_expansion_limit=3000

Restart Postfix

$ postfix stop
$ postfix start

Mailman Configuration

http://wiki.zimbra.com/index.php?title=ZCS_Mailman_Integration

http://bugzilla.zimbra.com/show_bug.cgi?id=8968

http://www.zimbra.com/forums/administrators/1380-solved-zimbra-mailman-howto.html

Duplicate Emails With Distribution Lists

There was a change between 4.5.x and 5.x . New variable is zimbraMessageIdDedupeCacheSize.

The "zimbraMessageIdDedupeCacheSize" attribute might be set to zero.

su - zimbra
zmprov gacf | grep zimbraMessageIdDedupeCacheSize

If you need to change the setting.

zmprov mcf zimbraMessageIdDedupeCacheSize 3000
zmmailboxdctl restart

Related Bugs:

Jump to: navigation, search