Question 1

How many sender accounts do I need for webinar outreach?

Accepted Answer

The number of sender accounts depends on your total invite volume and daily sending limits. A typical sender can safely send 50 Google Calendar invites per day. If you need to reach 1,000 contacts in 14 days, you would need at least 2 senders (1,000 / 14 / 50 = 1.43, rounded up to 2). Use the Sender Capacity Planner above to calculate your exact needs.

Question 2

How far in advance should I start sending webinar invites?

Accepted Answer

Most B2B webinar outreach campaigns perform best when invites are sent 14-21 days before the event. This gives enough time to reach all contacts while keeping the webinar top-of-mind. Use the Invite Window Calculator to check whether your current sender setup can handle your list within your available time.

Question 3

What is a good RSVP rate for webinar outreach?

Accepted Answer

A typical RSVP rate for B2B webinar outreach via Google Calendar invites ranges from 8% to 20%, with 12% being a common benchmark. Factors that affect RSVP rate include audience relevance, invite personalization, sender reputation, and the value proposition of the webinar topic.

Question 4

How many invites can one sender account send per day?

Accepted Answer

Google Workspace accounts can technically send more, but best practice for deliverability is to limit each sender to around 50 calendar invites per day. This keeps your sender reputation healthy and avoids triggering spam filters. CinnaReach automatically rotates between your sender accounts to maximize throughput while staying within safe limits.

Webinar outreach calculators

Invite Window Calculator

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Sender Capacity Planner

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