MergelineMergeline
Best if you want 60 free emails a day, follow-ups that stop on reply for $99 a year, and lists that never leave your browser. It sends at a human pace up to Gmail’s own limit, so it is not built for thousands of emails a day.
Best GMass alternatives for Gmail mail merge
The best GMass alternatives for Gmail mail merge in 2026 are Mergeline, Mailmeteor, YAMM and Streak. GMass has no free plan, and its follow-ups start at $39.95 a month. Mergeline sends 60 emails a day free, includes up to 7 follow-ups for $99 a year, and keeps your list in your browser.
What does GMass do well?
- It can send well past Gmail’s daily limits on paid plans by using SMTP. GMass footnotes that this depends on your account set-up1.
- Unlimited automatic follow-up stages on Premium and above1.
- A/B tests, open and click tracking, and custom tracking links on its plans1.
- Team plans for 5 to 100 users1.
- It works inside Gmail as a Chrome extension, so you write campaigns where you already write email.
Why do people look for a GMass alternative?
GMass ended its free plan on December 21, 2023, citing fraud and abuse2. It now offers a 7-day trial capped at 50 emails per rolling 24 hours1. The cheapest plan, Standard, costs $29.95 a month or $249 a year, and it does not include follow-ups or A/B tests. Those start on Premium at $39.95 a month or $349 a year1.
Price is the most common complaint from small senders. One Reddit user who needed about 50 emails a day asked, “Is there really no lower cost software to achieve this.”3 On Capterra, the review summary counts 58% negative mentions of deliverability out of 67, with reviewers saying many emails went to spam4. Other reviewers say support is hard to reach and that a renewal caught them by surprise5.
Permissions are the third reason. The GMass FAQ says Google’s consent screen tells you GMass can “read and manage” your email6, and GMass keeps a page for people who stop at that screen7. Its privacy post says recipient addresses are stored in the GMass database, email content passes through its server to insert tracking, and list information may be shared with ad platforms such as Google for targeted advertising8.
Account safety worries some users too. On Reddit, one person reported a Google Workspace account suspended 21 minutes after a GMass campaign started9. Suspensions depend on the list, the content and the account history, not only on the tool, but they explain why many people now prefer to stay inside Gmail’s own limits.
Which GMass alternatives are worth a look?
These are the 5 tools we would look at first if you are leaving GMass, with GMass in the last row for reference. Mergeline is first because it is ours; the verdicts below say who each one suits.
| Tool | Free plan | Lowest yearly price | Follow-ups from | Open tracking |
|---|---|---|---|---|
| Mergeline | 60 emails a day, no time limit, no branding added | $99 | $99 a year (Pro, up to 7) | None added |
| Mailmeteor | 50 emails a day10 | $71.88 per user (Starter) | $215.88 a year per user (Premium, 5) | Email tracker |
| YAMM | 20 recipients a day for 1 user11 | $72 (gmail.com) | Follow-up campaigns on every plan | Opens, clicks, responses |
| Streak | 50 mail merge sends a day, plus email and link tracking. No CRM pipelines12 | $588 per user (Pro) | Listed; plan not published | Views and links |
| Right Inbox | “Limited” plan without mail merge, tracking or sequences13 | $95.40 per user (Professional) | $95.40 a year per user (Professional) | Paid plans |
| GMass | No free plan. A 7-day trial with 50 emails per rolling 24 hours1 | $249 (Standard) | $349 a year (Premium) | Opens and clicks |
Mailmeteor
Best for teams that want a Sheets add-on plus a web dashboard and Outlook support, with open tracking and high daily volume on the top plans.
YAMM
Best for people who keep everything in Google Sheets and want open tracking on a low yearly price, especially on a personal gmail.com account.
Streak
Best if you want a full CRM with pipelines inside Gmail and mail merge is a side feature. Priced as a CRM, from $49 per user a month billed yearly.
Right Inbox
Best if you want sequences, tracking and other Gmail tools in one low-priced bundle, or need Safari or Firefox. Mail merge is not in its free plan.
How is Mergeline different from GMass?
- No server in the path. Mergeline fills Gmail’s own compose window in your Gmail tab, so each email leaves from your browser and lands in your Sent folder. No Mergeline server receives your list, your message or the replies.
- No tracking pixels. GMass offers open and click tracking. Mergeline adds no pixel and no redirected links. It reports replies, bounces and opt-outs instead.
- A free plan that stays free. 60 emails a day with merge tags, conditional text, reply detection and the address check, with no time limit.
- Follow-ups for $99 a year. Up to 7 follow-ups in the same thread, stopping for anyone who replies. GMass Premium, its first plan with follow-ups, is $349 a year.
- Gmail’s own limits. Mergeline Pro sends up to Gmail’s limit: about 500 a day from a personal account and 2,000 from Google Workspace1415. It never tries to go past them. If you need thousands of emails a day, GMass is built for that and Mergeline is not.
| Mergeline | GMass | |
|---|---|---|
| Free plan | 60 emails a day, no time limit, no branding added | No free plan. A 7-day trial with 50 emails per rolling 24 hours1 |
| Lowest yearly price | $99 | $249 (Standard) |
| Follow-ups | Up to 7 on Pro, in the same thread, stopping for anyone who replies | Premium and up, with unlimited automatic follow-up stages1 |
| Tracking | None added: no tracking pixels and no link redirects | Open and click tracking, with custom tracking links on all plans1 |
| Where your data lives | In your browser. No Mergeline server receives your lists, emails or replies | Recipient addresses stored in the GMass database; email content passes through its server8 |
| Google permissions | No Google account permissions by default. Optional Google sign-in asks for gmail.send, plus gmail.readonly only if you turn on reply detection | Gmail access that Google’s consent screen describes as “read and manage” your email6 |
Who should stay with GMass?
Stay with GMass if you send thousands of emails a day, need to go past Gmail’s limits, run campaigns for a team of 5 to 100 people, or rely on open and click reports. Mergeline is deliberately smaller: one person, their own Gmail, at a human pace.
How do I move from GMass to Mergeline?
- Keep your list. GMass campaigns often start from a Google Sheet. Keep that sheet, or download it as a CSV file. Remove anyone who unsubscribed in GMass before you import it.
- Install Mergeline and add your list. Add it from the Chrome Web Store, open Gmail and click the Mergeline icon. Paste addresses, drop a CSV or Excel file, or paste a Google Sheets link. Duplicates and invalid addresses are removed for you.
- Swap the merge fields. Each column becomes a Mergeline tag. Write {{FirstName|there}} where the word after the bar is used when a cell is empty. Tags also work in the subject line.
- Rebuild your follow-up stages (Pro). Add up to 7, each after the number of days you choose. They go in the same thread and stop for anyone who replies.
- Send a test, then a small batch. Send the first email to yourself. New or quiet accounts start with slow start: 20 emails on day one, then 15 more each sending day, with random gaps of 45 to 120 seconds.
- Remove GMass’s access when you are done. If you stop using it, remove GMass from the third-party connections in your Google Account.
Questions people ask
Is there a free GMass alternative?
Yes. Mergeline’s free plan sends 60 emails a day with no time limit and no branding. YAMM’s free plan allows 20 recipients a day11, Mailmeteor’s 50 emails10 and Streak’s 50 mail merge sends12. GMass itself has no free plan, only a 7-day trial1.
Which GMass alternative has follow-ups for less?
Mergeline Pro includes up to 7 follow-ups that stop on reply for $12 a month or $99 a year. GMass follow-ups start on Premium at $39.95 a month or $349 a year1. Right Inbox includes sequences on Professional at $7.95 a month billed yearly13, and Mailmeteor includes 5 follow-ups on Premium at $17.99 a month billed yearly16.
Can Mergeline send more than 500 emails a day like GMass?
Not from a personal account. Mergeline Pro sends up to Gmail’s own limit: about 500 a day from a personal Gmail account and 2,000 from Google Workspace1415. GMass uses SMTP to go past those limits on paid plans1.
Does Mergeline track opens like GMass?
No. Mergeline adds no tracking pixel and no link redirects. It finds replies, bounces and unsubscribes in your Gmail and shows them per person. Apple Mail Privacy Protection loads pixels automatically, which makes open counts unreliable anyway17.
Will switching from GMass hurt my deliverability?
Deliverability depends on your list, your content and your account history more than on the tool. Mergeline sends plain emails with random gaps, a daily cap and a slow start, and pauses by itself if too many addresses bounce.
Sources
- GMass pricinghttps://www.gmass.co/pricing, checked October 29, 2026
- GMass price changes, January 2024https://www.gmass.co/blog/price-changes-jan-2024/, checked October 29, 2026
- Reddit r/coldemail: GMass experiencehttps://www.reddit.com/r/coldemail/comments/1ffsnei/gmass_experience/, checked October 29, 2026
- GMass on Capterrahttps://www.capterra.com/p/168452/GMass/, checked October 29, 2026
- GMass reviews on Capterrahttps://www.capterra.com/p/168452/GMass/reviews/, checked October 29, 2026
- GMass FAQhttps://www.gmass.co/faq, checked October 29, 2026
- GMass login denied pagehttps://www.gmass.co/login-denied, checked October 29, 2026
- GMass: what data does our server storehttps://www.gmass.co/blog/gmass-privacy-information-what-data-does-our-server-store/, checked October 29, 2026
- Reddit r/coldemail: warning for GMass usershttps://www.reddit.com/r/coldemail/comments/1h6cy4s/warning_for_gmass_users_workspace_account/, checked October 29, 2026
- Mailmeteor docs: email quotahttps://mailmeteor.com/docs/get-started/email-quota, checked October 29, 2026
- YAMM pricinghttps://yamm.com/pricing/, checked October 29, 2026
- Streak pricinghttps://www.streak.com/pricing, checked October 29, 2026
- Right Inbox pricinghttps://www.rightinbox.com/pricing, checked October 29, 2026
- Gmail Help: limits for sending emailhttps://support.google.com/mail/answer/22839, checked October 29, 2026
- Google Workspace Admin Help: Gmail sending limitshttps://knowledge.workspace.google.com/admin/gmail/gmail-sending-limits-in-google-workspace, checked October 29, 2026
- Mailmeteor pricinghttps://mailmeteor.com/pricing, checked October 29, 2026
- Mailchimp: Apple Mail Privacy Protection FAQhttps://mailchimp.com/help/apple-privacy-faq/, checked October 29, 2026
Try Mergeline free in Gmail
60 emails a day free, with no card and no branding. Pro is $12 a month or $99 a year, with up to 7 follow-ups that stop on reply.
Add to ChromeKeep reading
- Mergeline vs GMass
- Best mail merge for Gmail alternatives
- Mail merge pricing compared
- How Mergeline keeps your lists private
- Mail merge guides
- Answers to mail merge questions
- Mergeline: mail merge for Gmail
- Mailmeteor alternatives
- YAMM alternatives
- Streak alternatives
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