Ajcody-MailingLists-And-Mailman: Difference between revisions

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===Mailman Configuration===
===Mailman Configuration===


http://wiki.zimbra.com/index.php?title=ZCS_Mailman_Integration
Please see the following:


http://bugzilla.zimbra.com/show_bug.cgi?id=8968
* [[ZCS_Mailman_Integration]]
* RFE - "Mailman Integration"
** http://bugzilla.zimbra.com/show_bug.cgi?id=8968
* http://www.zimbra.com/forums/administrators/1380-solved-zimbra-mailman-howto.html


http://www.zimbra.com/forums/administrators/1380-solved-zimbra-mailman-howto.html
===Sympa===
 
This might be another option to Mailman that might even be better.
 
https://www.sympa.org/overview/features
 
Some customers are advocating for it over Mailman on this RFE:
 
* RFE - "integrate zimbra with sympa.org"
** http://bugzilla.zimbra.com/show_bug.cgi?id=33712
* RFE - "Mail policies and access control for sending to distribution lists"
** http://bugzilla.zimbra.com/show_bug.cgi?id=9620


===Duplicate Emails With Distribution Lists===
===Duplicate Emails With Distribution Lists===

Revision as of 18:12, 9 March 2009

Attention.png - This article is NOT official Zimbra documentation. It is a user contribution and may include unsupported customizations, references, suggestions, or information.

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

These are unsupport customizations. Please be sure to make backup copies of modifications to prevent lost after upgrades/restores of Zimbra.

Please see:


Also see the following RFE:

Restrict Sending To Certain Domains

Please see:

Add Everyone To Distribution List - Admin Console

RFE was made for this:

Everyone@domain Without Manually Adding Users To A DL

Investigating if this can be done. Please don't attempt anything below, I'm simply keeping track of my "notes" here.

DON'T ATTEMPT ANY OF THIS! THIS WILL MOST LIKELY GET POSTED INTO BUGZILLA AS AN RFE

RFE Made For This:

One Possible Way Described In An External Resource:

main.cf:
there is a line to resolve aliases:
virtual_aias_maps = ldap: $ config_directory / ldap / ldap-aliases.cf

ldap-aliases.cf
that relates to filter:
query_filter = (&(objectclass=mailgroup)(|(mail=%s)(mailalternateaddress=%s)))
result_attribute = mail result_attribute = mail
special_result_attribute = uniqueMember, memberUrl

in LDAP-e for everyone is recording with such attributes:
mail = everyone@domain.ru
memberurl = ldap :///ou=People,o=organization??sub? (&(objectclass=person)(uid=*))
objectclass=mailgroup
  • Had to use the following to get it to work:
receive_override_options = no_address_mappings 
Was a global setting.

Another Possible Way, again an external resource:

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 virtual_alias_expansion_limit

Set configuration

$ postconf -e virtual_alias_expansion_limit=3000

Restart Postfix

$ postfix stop
$ postfix start

Mailman Configuration

Please see the following:

Sympa

This might be another option to Mailman that might even be better.

https://www.sympa.org/overview/features

Some customers are advocating for it over Mailman on this RFE:

Duplicate Emails With Distribution Lists

Situation arises when a message goes out and the effected user is somehow targeted twice in the To/CC fields by either use of a DL list, multiple DL lists, and/or a direct inclusion of their email address as well.

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:

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