YAMM, or Yet Another Mail Merge, is a Google Sheets add-on that sends personalized mass email from Gmail using a spreadsheet as the data source. It is popular for newsletters, event invites, and simple mail merges. For cold email specifically, YAMM handles personalization and basic tracking but is lighter on follow-up automation and deliverability tooling than GMass. Choose YAMM for simple Sheets-based sends; choose GMass for serious cold outreach with sequences.
What Is YAMM?
YAMM is a Google Workspace add-on that turns a Google Sheet into a mail merge tool, sending personalized email from your Gmail account to a list in the spreadsheet. Each row is a recipient and each column a merge field. It is a long-standing, well-known tool for Gmail-based bulk personalized email, especially among Google Workspace users.
“Mail merge is a process to create personalized letters and pre-addressed envelopes or mailing labels for mass mailings from a form letter.”
: Wikipedia: Mail merge
YAMM is a Google Sheets add-on that sends personalized email from Gmail using a spreadsheet as the list. Each row is a recipient, each column a merge field.
How Does YAMM Work?
You prepare a Google Sheet with recipient emails and personalization columns, write a draft in Gmail with merge tags, then run YAMM from the sheet to send each recipient a personalized copy. YAMM tracks opens and clicks back in the sheet. The whole workflow lives in Google’s tools, which is YAMM’s main appeal for Workspace users.
- Sheet as the list: A Google Sheet holds recipient emails and personalization columns, which YAMM reads as merge fields for each send.
- Gmail draft template: You write the email as a Gmail draft with merge tags, and YAMM fills each recipient’s values at send time.
- Tracking in the sheet: YAMM writes open and click status back into the spreadsheet, keeping reporting in the same Google tool.
Prepare a Sheet with emails and merge columns, write a Gmail draft with tags, then run YAMM to send each a personalized copy. Tracking returns to the sheet.
What Is YAMM Used For?
YAMM is used for newsletters, event invitations, announcements, and simple personalized mass emails to a known list. It suits one-off sends to contacts you already have, like customers or members, more than cold prospecting. Its sweet spot is a Workspace user who wants to send a personalized batch from a spreadsheet without learning a dedicated platform.
Need cold email with sequences? Send with GMass instead
Try GMass Free →Follow-ups and Spam Solver built in. Free 50/day to start.
YAMM suits newsletters, invites, announcements, and simple personalized batches to a known list, more than cold prospecting. Its sweet spot is one-off Workspace sends.
What Are YAMM’s Sending Limits?
YAMM respects Gmail’s daily sending limits, around 500 a day on free Gmail and 2000 on Workspace, plus its own plan-based daily caps on the free and paid tiers. Like any Gmail-based tool, it cannot exceed Google’s account limits. The free YAMM plan allows a small daily volume; paid plans lift YAMM’s own cap up toward the Gmail ceiling.
Source: YAMM and Google Workspace documentation, 2026-06.
YAMM respects Gmail’s daily limits, about 500 free and 2000 Workspace, plus its own plan caps. Like any Gmail tool, it cannot exceed Google’s account limits.
How Does YAMM Compare to GMass?
Both send personalized email from Gmail using a spreadsheet, but GMass is built for cold outreach with follow-up sequences, reply detection, Spam Solver, and deeper sending controls, while YAMM focuses on simpler personalized mass sends. For newsletters and one-off batches, YAMM is fine; for cold email needing automation and deliverability tooling, GMass is the stronger fit.
Both send personalized email from Gmail via a sheet, but GMass adds sequences, reply detection, and Spam Solver for cold outreach; YAMM focuses on simpler batches.
What Does YAMM Do Well?
YAMM does simple personalized mass email from Google Sheets very well: easy setup, a familiar spreadsheet workflow, basic open and click tracking, and clean integration with Workspace. For a user who lives in Google tools and needs to send a personalized batch quickly, YAMM is straightforward and reliable. Its simplicity is its strength for the right use case.
- Easy setup: Running off a Google Sheet and a Gmail draft, YAMM is quick to learn for anyone already comfortable in Workspace.
- Familiar workflow: The spreadsheet-as-list model is intuitive, with no separate platform or dashboard to master.
- Basic tracking: Open and click status written back to the sheet gives simple reporting without leaving Google’s tools.
YAMM does simple personalized mass email from Sheets well: easy setup, familiar workflow, basic tracking, clean Workspace integration. Simplicity is its strength.
What Are YAMM’s Limits for Cold Email?
For cold email, YAMM is lighter on multi-step follow-up sequences, reply detection, and dedicated deliverability tooling than purpose-built cold email tools. It is designed for sending a batch, not running a persistent cold campaign with automated follow-ups. A cold sender who needs sequences and Spam Solver will outgrow YAMM quickly and find GMass a better fit.
“GMass is built for cold outreach with follow-up sequences, reply detection, and Spam Solver, going beyond the simple personalized batch sends a basic mail merge add-on offers.”
: Growth Hack Suite: GMass Cold Email Review
For cold email, YAMM is lighter on follow-up sequences, reply detection, and deliverability tooling. It sends a batch, not a persistent cold campaign with automation.
Is YAMM Good for Cold Email or Newsletters?
YAMM is better for newsletters and personalized sends to a known, opted-in list than for cold prospecting. Cold email needs follow-up automation and deliverability features that YAMM keeps minimal. If your list is customers or members and you want a quick personalized blast, YAMM fits; if you are prospecting strangers and need sequences, a cold email tool fits better.
YAMM is better for newsletters and known-list sends than cold prospecting. Cold email needs follow-up automation and deliverability features YAMM keeps minimal.
How Much Does YAMM Cost?
YAMM offers a free tier with a low daily send limit and paid plans that raise the cap and add features, priced per user per year. The free plan suits occasional small sends; paid plans suit regular newsletters. Compare YAMM’s per-user pricing against a flat-rate cold email tool: for cold outreach, a flat plan that includes sequences often delivers more value.
Get cold email sequences at a flat rate with GMass
See GMass Pricing →Flat pricing with the full toolkit. Free 50/day to start.
YAMM has a free tier with a low cap and paid plans priced per user per year. For cold outreach, a flat plan including sequences often delivers more value.
How Do You Choose Between YAMM and GMass?
Choose YAMM for simple personalized batches to a known list from Google Sheets. Choose GMass for cold outreach needing follow-up sequences, reply detection, and Spam Solver. Match the tool to the job: a one-off newsletter and a persistent cold campaign have different requirements, and forcing one tool to do both leads to either missing features or unnecessary complexity.
- Define the job: Decide whether you are sending a one-off personalized batch to a known list or running a persistent cold campaign to prospects.
- Check for sequences: If you need automated multi-step follow-ups, that points to GMass; if a single send suffices, YAMM can work.
- Weigh deliverability needs: Cold prospecting to strangers needs Spam Solver and verification, which favor a dedicated cold email tool.
- Compare pricing model: Weigh YAMM’s per-user pricing against a flat-rate plan, since flat pricing often wins for growing cold volume.
- Pick for the trajectory: Choose the tool that fits where your sending is heading, not just the single send in front of you.
Choose YAMM for simple known-list batches, GMass for cold outreach needing sequences and Spam Solver. Match the tool to the job, since their requirements differ.
What Are Common YAMM Mistakes?
Common mistakes are using YAMM for cold prospecting it is not built for, sending to unvalidated lists that bounce, exceeding Gmail limits, and expecting follow-up automation it keeps minimal. Each leads to poor results or deliverability problems. The biggest is treating a simple batch tool as a full cold email platform, then blaming the tool for missing features it never claimed.
“Choosing a tool that matches the job, rather than forcing a simple sender to run a complex outreach program, is the single biggest factor in email tool success.”
: HubSpot: Sales Tech Stack
Common mistakes: using YAMM for cold prospecting, unvalidated lists, exceeding Gmail limits, and expecting follow-up automation. The biggest is mismatching tool to job.
Should You Use YAMM or GMass for Cold Email?
For cold email specifically, GMass is the stronger choice because cold outreach needs follow-up sequences, reply detection, and deliverability tooling that YAMM keeps minimal. YAMM remains excellent for newsletters and personalized batches to a known list. If your goal is prospecting strangers and booking meetings, GMass fits the job; if it is sending a clean personalized blast to contacts you have, YAMM works.
To set realistic targets whichever you choose, the cold email benchmarks guide defines healthy reply rates, and the cold email list building guide keeps each send targeted to a quality list.
Run cold outreach with sequences and Spam Solver in GMass
Try GMass Free →Built for cold email from Gmail. Free 50/day to start.
For cold email, GMass is the stronger choice with sequences, reply detection, and deliverability tooling. YAMM stays excellent for newsletters and known-list batches.
Frequently Asked Questions
The 12 most-asked questions about YAMM for Gmail mail merge.
What is YAMM?
Yet Another Mail Merge, a Google Sheets add-on that sends personalized mass email from Gmail using a spreadsheet as the data source. It is popular among Workspace users.
How does YAMM work?
You prepare a Google Sheet with emails and personalization columns, write a Gmail draft with merge tags, then run YAMM to send each recipient a personalized copy. Tracking returns to the sheet.
What is YAMM used for?
Newsletters, event invitations, announcements, and simple personalized mass emails to a known list. It suits one-off sends to contacts you already have more than cold prospecting.
What are YAMM’s sending limits?
It respects Gmail’s daily limits, about 500 free and 2000 on Workspace, plus its own plan-based caps. Like any Gmail tool, it cannot exceed Google’s account limits.
How does YAMM compare to GMass?
Both send personalized email from Gmail via a sheet, but GMass adds follow-up sequences, reply detection, and Spam Solver for cold outreach; YAMM focuses on simpler batches.
What does YAMM do well?
Simple personalized mass email from Google Sheets: easy setup, a familiar spreadsheet workflow, basic open and click tracking, and clean Workspace integration.
What are YAMM’s limits for cold email?
It is lighter on multi-step follow-up sequences, reply detection, and dedicated deliverability tooling. It sends a batch, not a persistent cold campaign with automation.
Is YAMM good for cold email or newsletters?
Better for newsletters and personalized sends to a known, opted-in list than for cold prospecting, which needs follow-up automation and deliverability features YAMM keeps minimal.
How much does YAMM cost?
A free tier with a low daily cap and paid plans priced per user per year that raise the cap and add features. For cold outreach, a flat plan including sequences often delivers more value.
How do I choose between YAMM and GMass?
Choose YAMM for simple personalized batches to a known list; choose GMass for cold outreach needing follow-up sequences, reply detection, and Spam Solver. Match the tool to the job.
What are common YAMM mistakes?
Using YAMM for cold prospecting it is not built for, unvalidated lists, exceeding Gmail limits, and expecting follow-up automation. The biggest is mismatching tool to job.
Should I use YAMM or GMass for cold email?
For cold email, GMass is stronger with sequences, reply detection, and deliverability tooling. YAMM stays excellent for newsletters and personalized batches to a known list.
