Support is very responsive and…
Support is very responsive and accommodating. The product delivers exceptional value—definitely bang for the buck.
By Training T.
Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
448 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Send mass personalized emails in bulk directly from Google Sheets and Gmail. Get an open rate up to 20x higher than with traditional emailing solutions. With a 4.8/5 rating on over 19,000 reviews and 10,000,000 installs in the Google Workspace Marketplace, YAMM is a top-rated app trusted by 150,000 organizations.
Yet Another Mail Merge (YAMM) (yamm.com) has 448 customer reviews on The Fair Hearing, with an average rating of 4.9 out of 5.
Showing 424 reviews with 5 stars · Clear filters
Support is very responsive and accommodating. The product delivers exceptional value—definitely bang for the buck.
By Training T.
they answer quickly and helped me solve my issue with great disposition
By Mafer M.
I have used YAMM for years, but always on a computer. Today I needed help figuring out how to use it on my iPad. Got a very quick response from the help team, which led to my mail merge getting sent out within about 10 minutes of sending the request. Simple tool, incredible value!
By Erin R.
Super happy with YAMM’s service! Easy to use and reliable. Special thanks to Thristan for being so helpful and responsive, excellent customer support!
By Kathleen
Not only does this tool save us time sending personalized emails, but the support is fast and good.
By Nicole S.
The company was very responsive towards my problem.
By Thảo H.
Very quick response! Clear information given and a solution was found! Thanks Carlos and Yamm
By Dylan J.
YAMM is a perfectly simple looking plugin for Google Workspace that belies its capabilities. As simple or complex as you need, YAMM allows you to integrate your own flavour of mailmerge into gmail and sheets, giving you great control and feedback
By david R.