How to send mails only to people who had read one or more mails the last 90 days

[andrew_c3]

Hello stefan-franz,

There is a similar discussion about re-sending emails available here which might be useful:

Why NOT to allow sending marketing emails to the same contact multiple times

Hello, Recently we upgraded our email platform and, during the migration, some emails bounced back as undeliverable. The new platform went live shortly afterwards. A few weeks later, several partners contacted us asking whether we had received their offer emails. I explained that we had been changing email platforms at the time. The partners checked their marketing platforms, saw the failed emails, clicked a single button, and within seconds the original email was resent to my inbox while spea…

Thanks.