Campus Mailing Lists, Mass changes to Safe Senders or Blocked Senders lists

How do I add a large number of email addresses to either the Safe Senders or Blocked Senders lists.

Mail list owners can control member post behavior with these settings.   

  • Blocklist:   Posts from these users are automatically rejected.  The block list is used to exclude individuals or domains from posting to your mail list.
  • Modlist:   Posts from these users are automatically queued for moderation and a notification is sent the person who is listed as the moderator.  
  • Safelist:  Posts from these users are automatically accepted and sent to the mail list subscribers.


  • Blocklist has priority over Modlist and Modlist has priority over the Safelist.  If an email address is listed in multiple locations then the appropriate priority will take precedent. 
  • If a moderator is not defined then the email from a person listed in modlist will be discarded.  You can define a moderator from:  (Admin) > Edit List Config > List definition and scroll to Moderators section

Config Setting 

These settings are the same for each list type.  Click on the appropriate list and follow the syntax rules which include:

  • Only one email or expression per line.
  • The # character designates a comment line.
  • The * character is a wild card and matches any string. 
    • * = match any sender from the "" domain.
    • only one * character is permitted per line.
  • Do not use vertical bar, square brackets, or angle brackets in the pattern.
Blocklist Example:

The current blocklist contains 3 line(s)
# block all email from Russia

Keywords:spam-control, mass changes, add block Sympa   Doc ID:63148
Owner:Sympa S.Group:University of Illinois Technology Services
Created:2016-05-04 10:06 CSTUpdated:2016-12-21 10:20 CST
Sites:University of Illinois Technology Services
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