How many emails can you really send with GMass and Gmail?

Gmail officially claims that with a regular Gmail account you can send 500 emails/day and with a Google Apps account you can send 2,000 emails/day. In fact, I’ve even claimed that with GMass, if you’re a Google Apps user, you can send a 10,000 recipient campaign, where GMass will evenly distribute the campaign at 2,000 emails/day for 5 consecutive days.

So if you’re using GMass, you should be able to send 60,000 emails/month (2,000/day x 30 days in a month) from a single Google Apps account, right? As it turns out, that usually isn’t the case.

In working with over 40,000 accounts in the last year, we’ve noticed that Google often throttles the number of emails a particular account can send based on a variety of factors, including:

  • How old the particular Gmail or Google apps account is (the older, the better)
  • How many conversations exist in the account (may existing conversations are better)
  • Whether the account has sent mass emails before (if it has, then you’re better off)
  • The content of the mass emails (non-spammy content)
  • The bounce rate of the overall account (the lower the better)
We don’t have exact rules on how Google decides how many emails an account can send at a particular time, but here’s what we’ve observed:
  • A brand new Gmail account (ending in or with no history has very limited sending ability. Sometimes you are limited to 10 emails right when the account is created.
  • A brand new Google Apps account, where the organization itself is new to Google Apps, also has very limited sending ability.
  • A brand new Google Apps account, where the organization has a history with Google Apps, can send near the 2,000 emails/day limit almost right away

So what happens when you try to send, and Google decides you are over limit?
Using GMass, you’ll notice that Gmail will start bouncing the emails and the bounce notification will look like this:
This is the Bounce you’ll see if GMass sends an email when your account is over limit.
If you are in the Gmail interface, and you try to send a regular email with the regular blue Send button, you’ll be stopped with a popup that looks like this:
This is the error you’ll get if you try to send an email with the regular Gmail Send button when your account is over limit.

What does GMass do when it detects that your account is over limit?
GMass looks for bounce notifications like the one shown above to determine if your account is over limit. In fact, while it’s sending your campaign, it’s also simultaneously monitoring for these bounces. If the bounces start to appear, and you are technically under the 500 or 2,000 limit, then GMass pauses your campaign for an hour and tries to continue sending later.

Does GMass re-send the emails that have already bounced?
No, GMass won’t automatically resend the emails that have bounced with an over-limit message, but you can easily resend these emails after you determine that your account has more sending ability. Here are step by step instructions.
Special Privilege for Google Apps Users
If you have a Google Apps account, and you’ve reached your limit and are unable to send emails, you have the option of having your Google Apps administrator “reset” your account. This is done through the Google Apps admin console. By resetting your account, your daily quota is immediately reset. This option, however, can only be used 5 times per year per account, so use this sparingly…only in situations where you’ve hit your limit and you absolutely need to send more email, whether it’s through GMass or person-to-person email with the regular Send button.
Does subscribing to a paid GMass account improve my ability to send?
No, it does not. Whether you have a free or a paid GMass account, your overall sending limit per day is the same and is determined by Gmail, not by us. A free GMass account limits you to 50 emails at a time, but only Gmail imposes restrictions on total emails sent per day. We’ve had users express surprise that they subscribed to GMass, yet still couldn’t send as many emails as the Gmail published limits, so it’s important to know that GMass has no ability to control how many total emails you can send per day.

So how many emails can I really send with GMass and Gmail?

If you have a Gmail account with an excellent reputation, you’ll usually get your 500 email limit for the first 24 hours but only a subset of that for the second 24-hour period. Meaning, if you send 750 emails, where GMass sends the first batch of 450 now (so you have a buffer of 50), and the remaining 300 24 hours later, that usually works. Avoid sending 900 though, because then you would need your full sending ability during the second 24-hour period.

If you have a Google Apps account with an excellent reputation, you’ll usually get the full 2,000 email limit for the first 24 hours but only a subset of that for the second 24-hour period. So, you can probably send 3,500 emails, where 1,950 go out the first day, and the remaining go out on the second day, but if you were to send 4,000 emails, you might get some bounces on the second day.

17 Replies to “How many emails can you really send with GMass and Gmail?”

    • Maya Quijada

      If you have a free account, GMass limits you to 50 emails per 24 hours. If you have a subscription, we do not impose limits on the sending ability of your account.

  1. Maya

    Hi there,

    Although we do check our blog comments, the best ways to get support from the GMass team are here:

    To answer your question, if you have a free account, there is a limit of 50 emails per day sent through GMass. Once subscribed, we do not limit sending in any way, and your maximum sending is determined by your Gmail account. You're right that a regular Gmail account should have a limit of 500 emails/day.

    If you'd like us to look further into what's going on, feel free to email and open a ticket with our help team!

    • Maya Quijada

      Free accounts are limited to 50 emails sent through GMass per 24 hours. Subscribed accounts do not have limits imposed on them by GMass.

  2. Wilma

    We have a regular free Google Apps account. I tried to send out over 1,000 emails yesterday afternoon. i did receive a notice “your message did not reach some or all of the intended recipients. . . Daily user sending quota exceeded. . .” will I need to resend the emails that would not send yesterday or will they send out automatically after 24 hours from the last send?

  3. Farzad Hejazi

    I am using university email and I tried to send daily 2000 emails and after one week I am not able to send any group email since my email is blocked. If I use the GMass , can I send again daily 2000 emails or since my email is blocked it will not function?

    • Maya Quijada

      If your email account has been blocked by Google, we cannot recover the account on your behalf. Contact your domain administrator to recover the account.

      If the account is recovered, you will be able to use GMass, but we recommend sending at a lower number until you’re sure of the sending limit for your account.

  4. NrB Fashion


    I am using Google Apps, I am trying to send camping with Gmass, but I am only able to send per day 400 Mail,

    Could you pls inform me how I can increase send mail?


  5. Arkritie

    I have a paid subscription but using GMass mails are not being sent and also emails which are shown as opened have not even been sent plz help

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