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SMTP

January 7, 2019

New fast SMTP sending option

Speed has never been one of GMass’s strengths. Until now. If, for example, you need to send 1 million emails …

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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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November 20, 2017

How to get around Sendgrid’s domain whitelabel requirement

On April 6, 2020, SendGrid changed its sender verification requirements for new accounts created since April 6, 2020. Accounts created …

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October 25, 2017

How to send unlimited emails in Gmail using an SMTP server

You can now break Gmail's sending limits and send unlimited mail merge emails from your Gmail account, using the GMass plugin and a third party SMTP server.

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Using the “Just create Drafts” option with unlimited SMTP sending

We recently announced the official launch of unlimited sending in Gmail. It works by allowing you to connect your GMass …

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How to configure a Sendgrid SMTP account for GMass

If you’re using the GMass unlimited sending option by connecting an SMTP service to GMass, you may have chosen Sendgrid as …

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