Sari, I think in your situation a follow up email would be entirely appropriate and not considered “spam.” Anyone who checked the link before the changes would not know of the changes without the 2nd email and they might try to show up for your event on the wrong date. (now that might really upset them!)
But I do like the link idea, so as the event comes together, your guests will have easy and quick access to the most up-to-date details.
These are good common sense reminders – Thanks Alyson.
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