Here on the Gmail mail merge archives page, you can read the articles our team has written about sending your merge emails in Gmail.
We're covering lots of different merge features, including personalized attachments, list filtering, merge previewing and a whole lot more.
You might also be interested in our epic mail merge for Gmail guide. It covers the different techniques for mail merging with Gmail, top strategies, software options and how to get started fast.
July 1, 2025
Improve Your Mail Merge Deliverability: 10 Proven Strategies
Mail merge deliverability can be challenging — but presents different opportunities and solutions than other types of emails. Here are the keys.
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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 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 2025)
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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January 17, 2025
How to Run a CSV Mail Merge in Gmail (GMass Guide)
Need to use a CSV mail merge to send an email campaign in Gmail? Here's the solution of how to do that using GMass and Google Sheets.
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June 28, 2022
Mailtrack Mail Merge vs. GMass: Who’s Best for Sending Campaigns?
Mailtrack is a popular open tracking tool for Gmail that also offers some basic mail merge features. How does it compare to GMass for sending campaigns?
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June 10, 2022
We Tested Gmail Multi-Send (Google’s Built-in Mail Merge)
Gmail multi-send is Google's first crack at native mail merge (although without personalization). We tried it out to see what it can do.
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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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August 3, 2017
How using Gmail’s “Send mail as” settings affects email deliverability
In Gmail you can use the "Send mail as" settings, but this can impact your email deliverability if sent through external SMTP servers.
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June 15, 2017
You can now send huge 35 MB Gmail mail merge campaigns
We've re-engineered how GMass connects to Gmail to make it so that you can send mail merge campaigns that are a whopping 35 MegaBytes in size.
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May 11, 2017
Gmail Attachment Limit: How to Send Files that Exceed the Limit
GMass imposes a 35 MegaByte size limit on a Gmail mail merge campaign, even though Gmail's official published size limit is 25 MB. How is this possible?
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