The most impactful addition to outbound event email invitations is an Add to Calendar button. It converts a passive email read into an active calendar commitment - and research consistently shows this is the single highest-ROI step for improving attendance.

Why Add to Calendar in emails works

An event on someone's calendar fires automatic device reminders and occupies a visible slot in their daily schedule. An event in an inbox competes with hundreds of other emails and is forgotten within hours. The gap between "read the email" and "showed up to the event" is largely a memory and prioritization problem - calendar placement solves both.

Practical email tactics

1. Add to Calendar in every invitation Include an Add to Calendar link prominently - not buried at the bottom. Use a clear label: "Save to my calendar" or "Add to Calendar."

2. Send a reminder email 1-2 days before Include the Add to Calendar link again for recipients who did not click it the first time.

3. Personalize the calendar event If your email platform supports merge tags, personalize the calendar event title (e.g., "Your call with [Company] - Tuesday 2pm") so it feels relevant when it appears in their calendar.

4. Use a clear, benefit-focused subject line Emails about events compete with everything else in the inbox. Lead with the value ("Learn how to reduce no-shows by 45%") not just the logistics.

5. Segment by engagement Re-send to non-openers with a different subject line 2-3 days after the first send.

The Add to Calendar step is free to test

AddEvent's free plan allows 100 Add to Calendar clicks per month - enough to test the impact on your next campaign before committing to a paid plan.