Sending Daily Reminder Emails with Cron in Evolution CMS

Reminder emails do not require taking the whole site offline — they require a controlled batch process with sane limits and a cron schedule.

If a site needs to remind subscribers about events one day before they happen, the right solution is usually a scheduled batch process rather than trying to send everything during normal page requests.

Typical volume

The donor estimated roughly 150–300 messages per day. That is large enough to justify a dedicated mail script, but not so large that the site should “go offline” just because cron is working.

Recommendation

run a cron task that selects tomorrow’s subscriptions
send mail in controlled batches
log failures and retries separately
avoid coupling reminder delivery to page rendering

A well-behaved cron mailer should coexist with the site, not block it.

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