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We are working with a group that sends tens of thousands of mailings on a weekly basis so the civicrm_mailing_recipient (and related tables) have millions of records.

They also want to track opens and click throughs. The problem is that it takes eons (like over 5 minutes) to search these tables.

I think the answer is to purge this old data.

But just in case, I'm wondering if:

  • There are optimizing tips to make these searches go faster?
  • There are any extensions to help automate the purging of old recipient data? It seems that archiving email doesn't touch this data
  • Any other tips?

Thanks!

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