Each email provider imposes daily limits on how many emails you can send from a connected account. Sending above these limits can cause emails to be deferred, bounced, or flagged as spam. Use this reference when planning your Engage sequence volume.
Daily sending limits by provider
Provider | Daily limit (standard) | Notes |
Gmail (free) | 500 emails/day | Includes all sent mail, not just Engage sequences |
Google Workspace | 2,000 emails/day | Shared across all senders in the domain |
Outlook / Microsoft 365 | 10,000 emails/day | Per mailbox; lower limits may apply on new accounts |
💡 Note: These are provider-imposed limits, not Lusha limits. Lusha enforces its own sending caps to protect your deliverability - see Email Limits Best Practices for Lusha's recommended daily sending volumes.
Recommended sending volumes for new mailboxes
Even within your provider's limits, sending too many emails too quickly from a new or low-activity mailbox will hurt deliverability. Follow this ramp-up schedule:
Week | Recommended daily volume |
Week 1 | 20–30 emails/day |
Week 2 | 40–60 emails/day |
Week 3 | 80–100 emails/day |
Week 4+ | Up to your provider limit |
What happens if I exceed my provider's limit?
Depending on the provider:
Gmail / Google Workspace -= emails over the limit are deferred until the next day's quota resets. Sequences may appear paused.
Outlook / Microsoft 365 - you may receive a bounce with a 550 or 421 error code. The account may be temporarily throttled.
⚠️ Important: Consistently exceeding limits can result in your account being flagged or temporarily suspended by your email provider.
How to check your current sending volume in Engage
Go to Engage.
View the Emails Sent metric for today to see how many have been sent from your connected account at the top toolbar.
Adjust your sequence schedule if you're approaching your provider's limit.