Automatically send email reminders

Script for automatically sending Limesurvey email reminders using a cronjob. Allows setting email batch sizes.


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If you are maintaining several surveys at your Limesurvey system, sending email reminders manually can be quite a pain. Using this Limesurvey cronjob script you can fully automate the process of sending email reminders.

Reminder emails will only be sent to those participants who have already received an invitation email (see this Limesurvey cronjob script to automate sending invitations) and who have not finished the survey yet.  You can also set the maximum number of reminders which should be sent and set a delay of X hours between any reminders being sent.

Installation instructions:

  • Unzip the downloaded file.
  • Read the “installation.txt” file for your Limesurvey version for further information.
  • Edit the default and survey specific settings on top of the script.
  • We recommend to call the script each day at 23:59 to be sure that no more tokens will be added that day.
  • When using Limesurvey 2.06 please make sure to run build 151126 (dated November 26th, 2015) or later.
  • Note that we do not support MS SQL databases!

Additional information

Limesurvey version

v2.5x and later (2.6x, 2.7x,…), v2.05/2.06/2.6.x LTS (previous Limesurvey version), v2.00

Recent updates (starting 2016):


  • Fix for properly checking survey start and expiry date
  • Fix for correctly updating details at Central Participant Database (CPDB)


  • Include adjusted server setting for “reminder sent” timestamp


  • Added support for Limesurvey v2.50
  • Fixed optin/optout links within email texts


  • Added additional check to make sure each user has a valid token assigned


  • Improved batch size check to only send emails of a following survey if batch size was not reached