Limits

Are there limits on the number of rows I can merge with Mail Merge add-on?

This article describes the limits associated with the free version of Mail Merge add-on and the limits imposed by Google on Gmail and Google Docs usage for the premium version.

Mail merge limits

*Subject to Google-imposed limits (see below).

Google limits: Gmail

If you send hundreds of emails at once, Gmail may send you an error to discourage spamming.

You should also be aware of Gmail Sending Limits.

Therefore, the following work-arounds are suggested:

You can track merged rows to see which emails have been sent before an error occurs, so you can continue sending emails from where you left off for the next merge.
From Google Docs only:
- You can schedule emails to spread them out overtime, rather than sending them all at once.
- You can send emails over SMTP using third-party SMTP providers (such as SendGrid), using your own SMTP server or using other email accounts from (e.g., Yahoo!, Microsoft). You can also send emails over Gmail's SMTP, which gives you an additional 500 emails per day.

Google limits: Letters

When you merge more than 100 pages into a single document, you may receive errors, as Google Docs can only handle a limited amount of content. We suggest that you merge in batches.

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