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Bugs happen (so bugs archives happen too, I guess?).

GMass works tightly with Gmail, so if Google makes a little change, GMass needs to adapt. The vast majority of the time, we're prepared for those changes or we've future-proofed against them. But every once in a while, a little bug slips through.

Here in the bugs archive, you can read up on some of the bugs GMass has encountered through the years and how we've quickly squashed them. You may also find some solutions to problems that you can fix with a quick tweak.

October 30, 2017

Gmail Draft thinks To field is blank if invalid characters present in address

We’ve discovered that in certain situations, Gmail doesn’t save the addresses in the To field as part of a Draft, …

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September 13, 2017

Upgrading MimeKit broke our email address parser

GMass is written in C# and JavaScript and makes heavy use of a C# component called MimeKit. We recently upgraded to version 1.18, and it broke our code.

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July 11, 2017

Bug fix: Foreign characters in the To field would appear garbled in sent email

I just fixed a bug that was causing non-English characters in the To “Name” of a sent email to be corrupted. …

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March 1, 2017

Why your mass email sent to fewer recipients than you expected

If you’ve sent a mass email with GMass by copying and pasting addresses into the To field, and fewer emails …

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November 13, 2016

What to do if you get a “Requested entity was not found” error after clicking the GMass button

Occasionally, after you’ve composed your mail merge campaign in Gmail and hit the GMass button, instead of sending, you may …

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November 12, 2016

Automatic follow-up email bug fix for large attachments

There can be many complications when sending automatic follow-up emails with large attachments. Click here to read about GMass's solution for this issue!

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July 14, 2016

Yahoo bouncing emails sent by select GMass users

Several users have reported that in the last few days, sending to yahoo.com email addresses, and email addresses hosted by …

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April 14, 2016

Bug Fix: Gmail mail merge error when connecting to certain Google Sheets

We just deployed a bug fix that corrects an issue where you would receive an error when connecting GMass to …

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February 10, 2016

Just squashed a rare bug involving garbled characters in Gmail email marketing campaigns

Over the last month, a small number of users have reported garbled characters appearing in their Gmail mail merge campaigns …

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