queue user-to-user messages and remove duplicates

Bug #593500 reported by François Marier
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mahara
Confirmed
Wishlist
Unassigned

Bug Description

Some users have reported spam messages being sent to them by mahara.org users.

These spammers have manually created accounts on Mahara.org and just emailed (via direct messages within Mahara) a large number of users, copy and pasting the same code.

A solution would be to queue up all user-to-user emails (for say 5 or 10 minutes) and wait to see if a given user sends the exact same message to a large number of users (say more than 5 people ?) in that time. If that's the case, then the other emails should be discarded and a warning sent to the site admin.

Changed in mahara:
importance: Undecided → Wishlist
status: New → Triaged
status: Triaged → Confirmed
tags: added: antispam
tags: added: messaging
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