great customer service
great customer service
By customer
Tuesday, November 3, 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.
448 approved reviews, newest moderated first
great customer service
By customer
Extremely fast response, good service and efficiency.
By Marketing N.
Great product! Also, YAMM support is very responsive and transparent. We rarely have any issues but when we do, they're great.
By SL
Fueron muy atentos y me ayudaron mucho a resolver mi problema. Gracias.
By Universidad Victoria B.
I had a problem and YAMM responded quickly and courteously. It is all sorted now. Thank you,YAMM!
By Peter James L.
I love YAMM. It's a simple and well-built extension that has great features — yet not overly complex. Does just what I need it to.
By Charlene, North Star Hall “.
good and responsive support, too bad they werent able to assist me on my concern but im partly to blame but they were still able to partly make up for it
By Randy L.
I reached out with my inquiry after hours, so I received an email informing me of this. That was very helpful in preparing me to wait. Next day I received a follow up, with further instructions on how to address my issue, and YAY! my issue was solved by creating a new profile assigned to my YAMM account. Thank for your assistance. We just love the extension!!
By Kids Hope U.