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Apply to use OUR SendGrid account and overcome Gmail’s limits

Last year GMass introduced the ability to send unlimited emails by connecting a third party SMTP service to your account. This allows you to effectively break Gmail’s sending limits.

If you’re sending strictly opt-in email, you might be eligible to use our SendGrid account as your SMTP service, rather than setting up an SMTP service on your own.

We are rather selective about who we let use our SendGrid account, so please don’t take offense if we deny your request. Additionally, it can take a couple days for us to review your request, since we manually review every user’s sending history to determine if you are eligible.

Still, if you’d like to request to use our SendGrid SMTP account, here’s how to make that request.

You can request to use our SMTP service if you don’t want to create your own SMTP account.
  1. Click Compose to launch a new window.
  2. Set the To field to smtp@gmass.co.
  3. Set the Subject to the word request.
  4. Type an explanation of 1) how you’ve collected your email addresses, 2) the frequency of your mailings, and 3) the size of your mailings. (see example in the screenshot above)
  5. Hit the GMass button. Do not hit the Send button.

We’ll be notified of your request and will email you as soon as we complete our review.

If approved, your account will be linked to our SendGrid account.

We won’t provide you with the username/password to our SendGrid account, but behind the scenes, your account will be linked to it, and you’ll now see the choice to send either with SendGrid or with Gmail in the GMass Settings box for your account.


  1. This is a great idea but how can we authorize sending through SendGrid if we are using DMARC? Can we have SendGrid sign with a DKIM signature that we can authorize if the SendGrid account is managed by GMass?

    If we put the IP addresses assigned to this account in our SPF, how will SendGrid use our domain on the Return-Path in the header of our email so it will be properly aligned with the From: domain for DMARC?

    1. Hi Dan,

      Please contact our support team directly at https://www.gmass.co/blog/how-to-get-support-from-the-gmass-team/

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