Gmail multi-send (now mail merge)

Google says mail merge replaces multi-send mode in Gmail. It is available on eligible Workspace plans and lets one message go to many recipients with merge tags such as @firstname. Recipients get separate threads and cannot see the other recipients.

The limits are specific: up to 1,500 recipients in the To line per message and 1,500 mail-merge recipients per day for most accounts, inside the account’s total daily sending limit. Standard Gmail accounts have a lower daily limit.

A larger recipient list makes bad addresses more expensive. Verify the list before a merge send and remove invalid or disposable addresses; a bounce still counts against the sender’s reputation even when each copy is personalized.

• Gmail Help — Send personalized emails with mail merge (accessed 2026-11-02)
• Google Workspace Admin Help — Manage Gmail settings (accessed 2026-11-02)

• Gmail
• Mailchimp
• Email verification
• Verify a list
• Topic: Email tools
• Topic: Email marketing
• All terms