Large groups of users suddenly unsubscribing

From: "Spilker, Tyler spilkert@PROTECTED [Dada Mail Developers]" <dadadev@PROTECTED>
Subject: Large groups of users suddenly unsubscribing
Date: July 24th 2019

Hi there,


We had an incident this morning which fifty users suddenly sent unsubscribe requests from a list of about 800. Im being asked to investigate as it is unlikely they all sent requests at the same time. Looking into the error log I see a lot of entries around the same time in the form of:


NOOOOPE. at DADA/App/Dispatch.pm line 411, <CONFIG> line 1.

at, DADA::App::Subscriptions::token at DADA/App/Subscriptions.pm line 74, <CONFIG> line 1.

token exists at DADA/App/Subscriptions.pm line 92, <CONFIG> line 1.

$data->{data}->{flavor}: unsub_confirm at DADA/App/Subscriptions.pm line 157, <CONFIG> line 1.

at, DADA::App::Subscriptions::unsubscribe at DADA/App/Subscriptions.pm line 1643, <CONFIG> line 1.

$token: EpMWwEchP--REDACTED--aSR3EBbPHyd at DADA/App/Subscriptions.pm line 1678, <CONFIG> line 1.

$token_context:  at DADA/App/Subscriptions.pm line 1679, <CONFIG> line 1.

running scheduled jobs at teardown @ Tue Jul 23 15:15:11 2019 at /var/www/html/dada//DADA/App.pm line 377, <CONFIG> line 1.

running scheduled jobs at teardown @ Tue Jul 23 15:15:11 2019 at /var/www/html/dada//DADA/App.pm line 377.

running scheduled jobs at teardown @ Tue Jul 23 15:15:11 2019 at /var/www/html/dada//DADA/App.pm line 377, <CONFIG> line 1.


I know there was a bugfix around the 11.3.0 release that addressed some sort of automatic link-following behavior in clients but I am wondering if such an issue might still exist or if anyone else has seen behavior similar to this.


Thank you,



Tyler Spilker
Linux System Administrator
Information Technology Services

Foley LL






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