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New Features

GMass is always growing and evolving based on your feedback, requests, and mass email and cold email needs.

Whenever our team rolls out a new feature for GMass (or one of our other email deliverability tools), you'll find the announcement as well as a how-to guide here in the new features archives.

Read up on new features (or features that used to be new and are now more mature) and get rolling with everything GMass offers.

March 30, 2018

How to send a fast and simple mail merge in Gmail

Sending a mail merge in Gmail from a list of email addresses is very simple with GMass. That list can …

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February 19, 2018

How to use the “Inbox, Spam, or Promotions” email delivery testing tool

This is the guide to my free deliverability tool that tells you whether your email campaigns are making it to the Inbox, Spam, or Promotions folder.

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December 29, 2017

You can now pause your mail merge campaign

We just added a feature that allows you to pause and resume your Gmail mail merge campaign at will. When …

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November 29, 2017

SMTP Test Tool – FAQ

This is the FAQ for the SMTP Test Tool. Q: What’s going on here? A: This is a web-based SMTP …

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Just launched! World’s best SMTP server testing tool.

I just launched the world’s best web-based SMTP test tool. With my new tool, you can see the exact SMTP conversation …

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October 30, 2017

Improvements to the “Just create Drafts” feature

I just deployed some improvements to the “Just create Drafts” feature. As a reminder, this is the feature that allows you to create …

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October 9, 2017

Auto follow-up email enhancements

GMass offers a feature allowing you to send auto follow-ups out until getting a response to the original email. Start using this auto-email tool today!

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September 23, 2017

New option to skip weekends when scheduling mail merges

When scheduling multi-day mail merge campaigns, you can now choose to skip the weekends. While the Skip Weekends checkbox under …

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September 21, 2017

The Google Sheets dropdown is now searchable and beautiful

If you’ve used our Google Sheets integration to send your mail merge campaigns, you may have noticed how UGLY our spreadsheet …

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August 31, 2017

New auto follow-up option to stop email if anybody at company replies

Gmass offers a feature where you can send auto follow-ups in stages to people until they open or click on the email. Learn more about this feature today!

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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 3, 2017

Advanced Bounce Handling

You now have more control over your account’s bounce list and how bounces are handled for your account. GMass’s reply …

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