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Mailing lists

This screen lets you manage the mailing list system that is part of your hosting account.

Mailing lists are like mailing groups in that you assign one email address and messages are sent to everyone on the list.

The difference is that members of a mailing list can add or remove them selves by subscribing or unsubscribing to the list.

DTC implements mlmmj (maling list management made joyful) mailing software in to an easy to use control panel.

More information about mlmmj can be found at sites)

  • List of your mailing lists - Displays a list of the mailing lists set up for the current domain.
  • new mailing list - Click this link to create a new mailing list.

Mailing List Features:

  • New Mailing List - To create a new mailing list you only need two values:
    • List Name - This will become the email address to send messages to. You need to make sure that the list name is unique to the domain.
    • List Owner - This is the email address of the person who 'owns' the mailing list.
  • Edit Mailing List
    • Rights
      • Subscribers only post - When this flag is set, only people who are subscribed to the list, are allowed to post to it. The check is made against the "From:" header.
      • Closed list - Is the list is open or closed. If it's closed subscribtion and unsubscription via mail is disabled.
      • Owner - The email addresses in this fields (1 per line) will get mails to listname-owner@listdomain.tld
      • Moderated - If this flag is set, the email addresses in the field moderators will act as moderators for the list.
      • Moderators - This is the list of moderators.
      • No subscription confirmation - If this flag exists, no mail confirmation is needed to subscribe to the list. This should in principle never ever be used, but there is times on local lists etc. where this is useful. HANDLE WITH CARE!
    • Header
      • Subject prefix: - The prefix for the Subject: line of mails to the list. This will alter the Subject: line, and add a prefix if it's not present elsewhere.
      • Delete headers: - In those fields is specified *ONE* headertoken to match per line. If the fields are like this:
      Then all occurrences of these headers in incoming list mail will be deleted. From: and Return-Path: are deleted no matter what.
      • Add To: header: - When this flag is present, a To: header including the recipients emailaddress will be added to outgoing mail. Recommended usage is to remove existing To: headers with delheaders (see above) first.
      • To: or Cc: not mandatory: - If this flag is set, the list address does not have to be in the To: or Cc: header of the email to the list (interesting for aliases addressing multiple lists).
      • Custom headers: - These headers are added to every mail coming through. This is the place you want to add Reply-To: header in case you want such.
      • Added footer: - Fill this if you want every mail to have something like:
      To unsubscribe send a mail to
    • Archive
      • No archives - If this flag exists, the mail won't be saved in the archive but simply deleted.
      • No get-N function - If this file exists, then retrieving old posts with -get-N (for exemple mylist-get-12@my-domain.tld) is disabled
      • get-N function only for subscribers - If this file exists, then retrieving old posts with -get-N is only possible for subscribers. The above mentioned 'noget' have precedence.
    • Digest
      • Digest interval - This value specifies how many seconds will pass before the next digest is sent. Defaults to 604800 seconds, which is 7 days.
      • Digest max mails - This file specifies how many mails can accumulate before digest sending is triggered. Defaults to 50 mails, meaning that if 50 mails arrive to the list before digestinterval have passed, the digest is delivered.
    • Notifications
      • Notify new subscribtions - This file specifies how many mails can accumulate before digest sending is triggered. Defaults to 50 mails, meaning that if 50 mails arrive to the list before digestinterval have passed, the digest is delivered.
      • Notify when post and not subscribed - If this flag is present, the owner(s) will get a mail with the address of someone sub/unsubscribing to a mailinglist.
      • Deny if no To: or Cc: -
      • Notify when post and no access - Reject mails that don't have the list address in the To: or Cc:.
    • SMTP configuration
      • Max mail memory size - Here is specified in bytes how big a mail can be and still be prepared for sending in memory. It's greatly reducing the amount of write system calls to prepare it in memory before sending it, but can also lead to denial of service attacks. Default is 16k (16384 bytes).
      • SMTP relay server: - Mail server used to send the messages.
      • VERP: - Enable VERP support.
      • Max VERP recipients: - How many recipients pr. mail delivered to the smtp server. Defaults to 100.
      • Delimiter: - Do not change unless you really know what you are doing.
      • Bounce life: - Here is specified for how long time in seconds an address can bounce before it\'s unsubscribed. Defaults to 432000 seconds, which is 5 days.
      • Access list: - If this file exists, all headers of a post to the list is matched against the rules. The first rule to match wins. NOTE: the default action is to deny access (reject the mail) so take care if you write something here.
    • Subscribe/Unsubscribe an email address
      • Subscribe - Insert here an email address to subscribe it.
      • Unsubscribe - Insert here an email address to unsubscribe it.
    • Web archive
      • Enable webarchive - Enable webarchive at<list name>.
      • Own template - Insert here the template's code that you want use for your web archive. Read - documentation and - examples.
      • Recreate - Recreate all messages of webarchive. Use this only if you have changed the webarchive's template. NOTE: this works only if you have "web archive" checked.
      • Delete - Delete all messages of webarchive. NOTE: this works only if you have "web archive" not checked.
      • Anti-spam mode - Hide email addresses to avoid spam.
      • Ok -
      • Del -
      • Subscriber list (click to unsubscribe) - This is the list of email addresses subscribed to the current mailing list. You can remove an email address by clicking on it.
      • Subscribe a new user - Enter an email address in this field to add it to the current mailing list.
Page last modified on January 11, 2012, at 11:18 PM EST