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GMass Blog

Tips and tricks for sending email campaigns inside Gmail

June 27, 2025

Bulk Email Sender Pricing: What Your Campaigns Will Actually Cost

We compared the pricing for sending 5,000, 10,000, 100,000, and 1,000,000 emails a month at some of the most popular email plaforms.

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June 18, 2025

Mail Merge Subject Lines: 3 Secret Killers and 5 Smart Options

What personalization you should and shouldn't include in your mail merge subject lines to increase your open rates (and success rates).

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June 17, 2025

How to Make an Evergreen Email Sequence in Gmail (It’s Easy)

Creating an evergreen email sequence — an automated campaign that requires no updating — is powerful and doable in Gmail. Here's how.

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June 9, 2025

How to Fix Common Mail Merge Errors in Gmail

Mail merge errors in Gmail are regrettable — but also avoidable. Here's how to prevent problems like missing merge data, incorrect sends, and more.

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June 4, 2025

The 11 Fatal Problems with Gmail’s Built-In Mail Merge

Gmail has a built-in mail merge feature on some Workspace plans. Here's why it's probably not going to meet your needs — and an alternative that will.

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May 15, 2025

The 8 Best Mail Merge for Gmail Tools (New for 2026)

The best mail merge for Gmail tools and what to look for when choosing a tool. Includes GMass, Gmail's built-in merge feature, and more.

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May 8, 2025

Set Your Sending Order to Control Which Rows GMass Emails First

Choose the order GMass goes through your Google Sheet to email contacts: Sequentially, reverse, randomly, or alphabetically.

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May 3, 2025

How to Set an End Time for a GMass Campaign

How to schedule an end time for your GMass campaign to cut off your sending at a specific time of day,

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April 30, 2025

Subsequences in GMass: How to Automate Conditional Follow-Up Campaigns

How to create a subsequence - that's an automated follow-up campaign when someone takes a behavior or meets a condition, like replying or clicking.

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April 23, 2025

Dynamic Lists: How to Power GMass Campaigns with Live Sheet Data

How to make a GMass list dynamic so you can manage campaign recipients, auto follow-ups, suppression, and more from your Google Sheet.

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April 9, 2025

Case Study: How Jamout.ai Hit 67%+ Click-Through Rates with GMass

How Jamout.ai, an AI education and tools platform, found GMass to run their wide variety of email campaigns all inside Gmail — and saw fantastic results.

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April 4, 2025

SpinMax: Automatic AI-Powered Spintax for Every Email in Your Campaign

Introducing SpinMax - GMass's automatic, AI-powered spintax engine that makes slight wording variations to every single message in your campaign.

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