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Mailrelay vs GMass Comparison (2026)

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Good recommendations?

Mailrelay

GMass

Overview

Everything is included in the largest free account on the market, allowing you to send up to 80,000 emails per month at no cost to up to 20.000 contacts. Each month. Support is included so you can start without any problem.

GMass is a Google Chrome extension, which helps businesses run mass email campaigns from Gmail, manage responses, create recipient lists, and more. Supervisors can gain visibility into sent, opened, clicked, replied, unsubscribed, bounced, and rejected email metrics through reports.

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

Pricing

Starting from

One-time payment

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.4

113

Value for money

Ease of use

Features

Customer support

83%

would recommend this app

4.8

1.4K

1.2K

201

Value for money

Ease of use

Features

Customer support

93%

would recommend this app

Pros

“What has stood out most is the quality and responsiveness of the customer support. When we experienced an email delivery issue related to a shared sending IP, the support team reacted quickly, explained the problem clearly, and moved us to a high-reputation IP at no additional cost.”

Ballet F.

Producer

“We find Mailrelay's ability to add links to a specific section of our website (tour descriptions, calendar, or ticket purchase) very useful.”

Dita P.

graphic designer

“I had all my websites and projects there and was desperate to find a proper platform that suits my needs (both for small projects with free subs and for bigger ones with paid but more balanced plans).”

Xavier M.

Marketing

Pros

“It's a reliable and easy-to-use email marketing tool that integrates seamlessly with Gmail, making it simple to create, personalize, schedule, and track campaigns without switching platforms.”

Saksham K.

Marketing manager

“It makes email outreach much easier by allowing me to manage campaigns directly from Gmail, schedule emails, track open rates, and automate follow-ups.”

Karthikeya S.

Admin

“I was able to send over 300 emails and landed an agent along with 250 emails for a campaign pitch and allowed me to make each email individualized.”

Jackie P.

Model and Creative Director

Cons

“The main issue we experienced was related to the reputation of the shared sending IP, which caused some emails to be rejected by recipient servers and generated a significant number of soft bounces.”

Ballet F.

Producer

“Sometimes is a bit tricky and the interface is not as responsive as I'd like.”

Evelio E.

CEO

“I've experienced some issues when I've used it from my cell”

Evelio E.

CEO

Cons

“The sequence logic is less sophisticated than what I had access to in Intercom Series previously, but that's an unfair comparison given the price difference.”

Rene B.

Partner

“There are limitations in email template customization, a potential learning curve due to its feature-rich interface, deliverability issues related to its reliance on Gmail's infrastructure, and a lack of built-in CRM functionalities”

Joseph C.

Director of Operations

“No matter what tool you use, failing to warm up your domain and validate your email list will ruin your sender reputation.”

Narayan S.

Digital Marketing Consultant