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GMass Blog

Tips and tricks for sending email campaigns inside Gmail

Yahoo mail SMTP settings

May 28, 2020

Yahoo SMTP Settings (Updated Guide)

Looking to set up Yahoo SMTP settings for your email needs? This article has everything you need to do this quickly.

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Personalized email attachments

May 26, 2020

How to send multiple emails with different attachments in Gmail

Sometimes you need to send a mass email, where each email has a unique personalized attachment. Here's how you can do that from right inside Gmail.

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May 17, 2020

The 5 Best YAMM Alternatives We Found (Unlimited Emails, More Features)

Looking for a Yet Another Mail Merge alternative? This article highlights the top 5 YAMM alternatives that fix YAMM's big problems like limited features.

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google picker

May 13, 2020

Advanced Techniques with the Google Picker API

If your app needs to let a user pick a file from his Google Drive, you might consider using the …

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SMTP tech review

May 7, 2020

A technical review of popular SMTP Services [2026]

A technical review of popular SMTP services like SendGrid, Mailgun, Amazon SES, and Mailjet. Each has flaws, quirks, and distinguishing features.

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Outreach io alternatives

May 4, 2020

Top 3 Outreach.io Alternatives 2026 (Features, Pricing)

Looking for an Outreach io alternative? This article highlights the best Outreach io alternatives with their key features, pros, cons, pricing and ratings.

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Yet Another Mail Merge product review

May 3, 2020

Yet Another Mail Merge Review 2026 (Pricing, Features, Drawbacks)

Looking for a comprehensive Yet Another Mail Merge review? This article goes over its features, pros, cons & pricing to help you decide if it's a good fit.

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Outreach io product review

May 2, 2020

Outreach.io Review 2026 (Features, Pros, Cons, Pricing)

Looking for a comprehensive Outreach.io review? This article goes over its features, pros cons & pricing to help you decide if it's a good fit.

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O auth incremental authorization

April 23, 2020

Google OAuth’s Incremental Authorization is Useless

A best practice for using OAuth2 is to use incremental authorization, but I found it mostly useless. I'll compare it to eating out at a restaurant.

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Top 5 outreach programs

April 16, 2020

Top 5 Outreach Tools For 2026 (Features, Pricing)

Looking for the best outreach tools to promote your business? Here are the top 5 tools to help you every step of the way.

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SalesHandy alternatives

April 15, 2020

Top 3 SalesHandy Alternatives 2026 (Features, Pricing)

Looking for the best SalesHandy alternatives? This article highlights the top 3 SalesHandy alternatives with their features, pros, cons and pricing.

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Manual followup campaign

April 14, 2020

How to send a follow-up email campaign manually

If your follow-ups emails didn't send automatically, you can still manually send them, and they will go out as part of the original conversation.

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Transform your Gmail account into an email marketing powerhouse

GMass is easy to learn and easy to use — but brings unbelievable email power into Gmail

Try GMass for free Then check out the quickstart guide to send your first mail merge email in minutes!

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