New Feature: Automatic follow-up emails until you get a reply

The original email plus the automatic follow-ups that were sent 1 day, and 5 days after.


We just launched a powerful feature and the only of its kind integrated completely with Gmail. You can now set automatic follow-up email campaigns to be sent after an email campaign is sent, to dramatically increase your response rates. Reminders will be sent to your recipients in stages, until you get a reply (or an open).

Reload Gmail in Chrome now to get the update.

An example: you send an email campaign to 100 warm leads from a trade show offering to set up a demo of your product. When you send that campaign, you set it so that two days later, a reminder is sent to anyone that hasn’t replied, and three days after that, another reminder is sent, and a few days after that, a final email is sent asking for a reply.

It’s easy to use, and you can try it right now using the standard follow-up language we’ve come up with. Just check the box next to each “stage” you want sent, make any adjustments to the timing and language, and hit the GMass button to send.

The GMass Settings box, where you can configure auto follow-ups.

Important points to know

  1. You can use this feature for both mass emails and individual emails. If you’ve been using another Gmail tool for follow-ups to your individual person-to-person emails, you can use GMass instead.
  2. You can choose whether the automatic follow-up is based on recipients opening or replying. If you choose “Didn’t Open” as your follow-up action, fewer follow-ups will be sent, because you will almost always have more Opens than you will Replies. If you choose “Didn’t Reply” as your action, more follow-ups will be sent.
  3. Use the power of this feature sparingly. You likely don’t want to configure auto follow-ups with every campaign you send. This will cause your recipients to get additional emails from you, and you should only use this feature on emails to people where you genuinely want a reply.
  4. You can customize the message in the reminder emails that are sent. Each reminder will include your original email beneath it. You can specify the reminder message as text in the GMass Settings, which will suffice for most users. If you want a more customized reminder email, where perhaps the reminder message contains formatting or links, you can choose custom content instead of freehand text. Custom content is based on a past sent GMass campaign. A future tutorial on this feature will explain how to create more complex follow-up content.
  5. You can also personalize the follow-up email with personalization variables, as shown in the screenshot below.
  6. After you’ve launched a campaign with automatic follow-ups, you can edit or cancel the auto follow-up settings. Here you can also add auto follow-ups to a campaign after the fact if you forgot to do so when you originally sent it, but be careful. Changing the settings to an already-sent campaign can trigger an immediate batch of reminder emails to be sent, if you’re not careful with the settings. If you change your mind and now wish to prevent auto follow-ups from sending, just set the “Days” to 0 for any particular Stage. 
  7. You can manually remove someone from the sequence of auto follow-ups. For more information on how to do that, see this separate blog post on manually removing someone from an auto follow-up sequence.
  8. You can use this feature with or without Google Sheets. If you use it with Google Sheets you can personalize your emails based on much more than just First and Last Name.
  9. If you’re setting auto follow-ups based on replies, you can toggle a domain-match setting such that if anybody at a domain responds, all future follow-ups to everybody at the same domain will stop. See the auto follow-up domain match setting doc for more information.

How the timing works

The timing of the reminder emails is based on the time that each individual email of a campaign was sent, not when the campaign was launched. Example scenarios:

  1. If you create your campaign on Monday, but schedule it to be sent on Wednesday with the first stage follow-up sending two days later, then the first follow-up to the non-responder will be sent two days from Wednesday, meaning Friday.
  2. If you create a campaign on Monday and use the “spread out” feature to send 100 emails/day for three days, and you include a first stage follow-up going 2 days later, then each non-responder will get his first follow-up two days after his original email. So for the 100 emails on Monday, the follow-ups will be sent Wednesday. For the 100 emails sent on Tuesday, the follow-ups will be sent Thursday, and so on.
  3. If you use the “Just create drafts” option on your campaign on a Monday, but then wait to click the link to have the drafts sent until Tuesday, the timing of the automatic follow-ups will be based on Tuesday because that is when the Drafts were sent.

What you see, and what your recipient sees

Your recipient will see your reminder emails on top of the original and part of the same conversational thread.

You will see the reminder emails as part of the same sent email thread, and each consecutive reminder will include the original and any previous reminders below.

The idea is that it looks just as if you had found the original email from your Sent Mail, hit Reply, and then typed a reminder on top.


You will get Reporting on each follow-up stage just like you would any other sent mail merge campaign. The follow-up campaigns that are sent to non-responders will be labeled slightly differently so you an easily identify a regular email campaign versus an automatically sent follow-up email campaign:

Coming soon! Stay tuned to the GMass blog for more information about automatic follow-ups, including example scenarios in which auto follow-ups can save you hours, a tutorial on how to use custom content as the reminder message, and why GMass’s auto follow-up feature is better than competing solutions.


Enhancement — you can now configure 8 stages of follow-ups

How to cancel or edit auto follow-up settings

How to block certain email addresses from receiving auto follow-ups

Using auto follow-ups to create an onboarding series of emails for your new users

How to restore a deleted Gmail Draft, if you can’t find your campaign under the GMass Auto Follow-ups Label

Stopping auto follow-ups for everybody at an organization if just one person replies

71 Replies to “New Feature: Automatic follow-up emails until you get a reply”

  1. Anonymous

    How do I send a follow up a few minutes after the original email? I tried indicating 0.01 for days but that did not work.

  2. Anonymous

    Nice and excellent features. Hope you can tweak this to accommodate the alias email option of the send as address for the follow ups rather than sending the follow ups using default address. Thanks

  3. Ajay Goel

    Unfortunately, personalized attachments isn't a supported feature yet, but it will be soon! Several users have asked for this, so it's likely that I'll build it.

  4. Anonymous

    I added a followup today to a campaign I already sent. I set the days to 3 days after, and today is 4 days after my campaign, but I haven't seen any saved copy of the email sent and I haven't seen any reports about it. I originally sent my campaign at 2:47 pm. Will the followups send at the same time?
    thanks – wondering if my emails were sent or not.

  5. Jennifer Mitchell

    I have sent out some emails using GMass and had selected the follow ups to happen after 3, 5 and 7 days (emails were sent out on the 28th). No follow ups have been sent that I can tell even though everything I look at makes it look like they are set to go. Not really sure what went wrong.

  6. Anonymous

    Hello. Question on the Automatic Follow up Feature. Stage one happens X days after the message was sent, Stage two reads after X days if "no reply"…is this X days after the initial send date or X days after stage one kicks in? Thanks for the help. Love Gmass!

  7. Anonymous

    My gmail account got disabled by google after just one day of campaign, can i know reason for that? I can't mention my account here…

  8. Matt

    I have an email campaign out right now with follow up emails that are specific to a type of person.

    I want to send out a new campaign and change the information that’s saved in the follow up sequences.

    If I change that information for the new campaign, will it affect the old campaign?

  9. Joe

    in the automatic reply field, I don’t see a way for me to change the subject title for each follow up custom message. Why is this? I also notice you don’t allow for pictures to be added as you would allow on the first email going out? Am I missing something? Do you have a feature that allows me to do this that I’m not seeing?


  10. John


    Regarding timing of the emails.

    If my original email is sent on Tuesday, my follow up is sent two days later which would be Thursday…what about the second follow-up? Is the number of days from the original email or my follow-up email?


    Originial email: Tuesday
    First follow-up email: Thursday ( 2 days )
    Second follow-up: Following Monday ( So four days from the first follow-up or six days from the original email?)

  11. Rinze

    Hi, I just wanted to check-in on the questions of John on the 4th of April:


    Regarding timing of the emails.

    If my original email is sent on Tuesday, my follow up is sent two days later which would be Thursday…what about the second follow-up? Is the number of days from the original email or my follow-up email?

    Original email: Tuesday
    First follow-up email: Thursday ( 2 days )
    Second follow-up: Following Monday ( So four days from the first follow-up or six days from the original email?)

    Looking forward to receive feedback 🙂

  12. Peter


    There is some confusion around whether the number of days you specify for the auto follow-ups are from the ORIGINAL email or from the LAST email.

    From testing, I can verify that the dates are from the ORIGINAL email.

    So don’t do what I did and try to specify your dates based on the last email and piss all of your prospects off.

    If you want to set up an email follow-up sequence to email prospects once per week until you get a response, you would set it up like this:

    Original Email
    1st Auto Followup: 7 days
    2nd Auto Followup: 14 days
    3rd Auto Followup: 31 days

    Side note…if anyone from Gmass reads this, please recognize that this is a very unintuitive user experience — you guys would do REALLY well to make this more clear.

    Side note #2….it would be nice to add in a way to NOT send auto followups on weekend days (unless I missed that option somewhere).

    Hope this helps.

    • Khaled


      so I put;

      1st Stage = 5 days
      2nd Stage = 5 days
      3rd Stage = 5 days

      So on the 5th I will send 3 follow up messages together?

      • Maya Quijada

        If you configure it that way, you will get an error when you hit the GMass button. Each Stage has to have a greater number than the previous Stage. The error will be something like:

        Stage 2 Days must be a number between 1 and 180 and greater than Stage 1’s Days. Uncheck the box to cancel this Stage

  13. Karl

    If I set up an automatic follow up for a campaign with a customized email message. Then I start a 2nd campaign to different recipients. When I look at automatic follow up, the email text for the 1st campaign is listed there. If I change it, will I change the text for the 1st campaign? So the question is can you have different auto follow ups going at the same time?

    • Maya Quijada

      It won’t change the text for the first Campaign or any other scheduled Campaign.

      The Stages auto-populate with the Auto Followups you used for your most recent Campaign – this is for convenience only, and you can change them without affecting other Campaigns.

    • Maya Quijada

      You’d need to configure a Manual Followup Campaign to do that. Click the Manual Followup Tool (red @ symbol near your search bar), select the Campaign and Behavior you’d like, then click Compose. That will launch a new Compose Window with the recipients matching your selected Behavior.

  14. Caliph Assagai


    I’m using Gmass but not a Google Sheet. I’m directing my email to one individual (To Line), but copying two or three others (cc Line).

    Ideally, if anyone of them replied, the campaign would stop. However, the entire district uses the domain so I can’t apply the feature that causes them to stop when one individual with a domain replies.

    If one of the CC’d people responds will my campaign stop? This is my desire.

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