MergelineCan I schedule a mail merge in Gmail?
Updated October 29, 2026
Not with Google’s built-in mail merge: its help page says mail merge cannot be used with schedule send. Mergeline Pro can start a campaign at a set time and send only during the hours you pick, in your time zone or in each person’s. Your browser needs to be open while it sends, and it picks up where it left off if you close it.
Two kinds of scheduling
- A start time. The whole campaign begins at, say, 8:30 on Tuesday.
- Sending hours. Emails only go out between set hours on set days, for example 9 to 5, Monday to Friday. Long lists spread across several days on their own.
Sending hours matter more than most people think. An email that arrives at 3 a.m. sits under a pile of newer mail by morning.
Set it up in Mergeline
- Build your list and email as usual.
- In the send step, pick a start date and time.
- Turn on sending hours and choose the days and hours.
- To use each person’s local time, add a column named TimeZone with values like America/New_York or Europe/London.
- Press schedule. Keep your browser open around the start time.
The browser rule
Mergeline sends from your browser, not from a server, which is why your list never leaves your computer. The trade-off: the computer must be on and the browser open while a campaign runs. If you close it, sending resumes when you open it again.
Good times to send
There is no single best hour, but a few habits help. Send work email on working days, in the morning of the reader’s time zone, so it sits near the top when they open their inbox. Avoid late Friday and holidays. For a list spread across countries, a TimeZone column does more than any “perfect time” rule, because each person gets the email during their own day. If you are not sure, start a small batch at two different times and compare replies.
Read the full guide: Schedule a mail merge
Related answers
Sources
Facts checked October 29, 2026. Google and other vendors change their limits and prices, so check the source before you rely on a number.
Mergeline does this from your own Gmail. Free for 60 emails a day with merge tags and no branding. Pro is $12 a month or $99 a year for follow-ups, scheduling and attachments.