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User’s Guide to the GMass Settings Box

Below is detailed explanation of each item in the GMass Settings box, which is accessible by clicking the “up” arrow next to the GMass button.

Send Test: Pretty self explanatory, but this option sends a test email to the address of your choice. Whatever is currently in the Subject/Message will be sent as a test email. Additionally, the test email message will include personalization if there is personalization information available for the test email address. Meaning, if you’re connecting to a Google Sheets spreadsheet to do a mail merge, and the test address is one of the addresses in the spreadsheet, then the test email will include personalization. Or, if the test address is a Gmail contact, and the address is part of the To field already in your Composed message, then sending a test to the address will include First/Last name personalization.

Live Proofreading: As of May 2017, you can now submit your email campaign for proofreading by a live human editor. Editors are standing by 24 hours a day and will correct your email for spelling, punctuation, grammar, and improve word choice, sentence structure, and organization. More details on the GMass live proofreading service.

Inbox Spam Promotions: This button, indicated by “Inbox or Spam?”, is a way to test if your email is likely to end up in your recipients’ inboxes, spam folders, or promotions folders. It works by sending this email out as a test to several test email addresses across a variety of accounts and seeing which of these three types of folders your email landed in.

Load Content: This dropdown shows your past GMass campaigns (but not “test” emails). Choose a past campaign by its Subject and the Subject/Message of your Compose window will be set to that of your chosen email campaign.

Personalize: These buttons insert personalization variables into your Message. Note that you can also insert personalization variables into the Subject, but not by using the buttons. You have to copy/paste the personalization variables into the Subject. For more information, see the GMass Personalization Guide.

Google Sheets Personalize: These buttons will display only if you’ve connected to a Google Sheets spreadsheet to send this campaign, and has the same effect as the other personalization buttons described above. For more information, see the GMass Personalization Guide.

Unsubscribe Link: Inserts an unsubscribe link into your message, wherever the cursor is. The language of the unsubscribe link can be customized, but the actual URL should remain unaltered. For example, if you want to change the language to:

Please unsubscribe if you wish to never hear from us again

You can do that, but just link the appropriate words to this URL:


Track: Choose whether you’d like to track opens and/or clicks. By default, both are selected. If you choose tracking options, you can view who opened or clicked an email by accessing the GMass reports after you send your campaign. Just drill down into the “GMass Reports” Label on the left-side of Gmail.

Send as: New messages vs. Replies. The default choice is “New Messages”, which means that your email marketing campaign will send as a new email thread. If you choose “Replies”, your message will be tacked onto the last thread you had with each recipient. If you have never emailed a particular recipient in the past and therefore have no prior conversation, then the email will go out as a new thread.

Action: Send vs Just Create Drafts. By default, clicking the GMass button will send your campaign, one email to each address in the To field. However, if you want to spot check your messages before they are sent, you can choose “Just Create Drafts”. Only Drafts will be created, and no emails will be sent. You can then review them in your Drafts folder, and GMass will email you a link to click to either send or delete the drafts. Detailed information on Just create Drafts.

Suppression by Campaign: To set a suppression list for a campaign, just select the past campaigns whose recipients you want to eliminate from your current campaign. Any past campaign can be used as a suppression list for the current campaign. You can select a single campaign or multiple campaigns from the dropdown. Use the CTRL key on Windows or the Command key on a Mac to select multiple lists from the Suppression select box. Any email address that was part of the chosen campaign will be suppressed, or eliminated from, this current campaign. Detailed information on using Suppression Lists.

Suppression by Days: You can suppress recipients by the number of days since they last received an email from you. Detailed information on suppression by days.

Spread out – Emails/Day: If you want to space your email sends over a number of days rather than sending them all at once, you may do so here. You must use a minimum value of 25. If left set to “max”, which is the default, GMass will send as many emails as your account allows and save the rest for future days.

Spread out – Pause a few seconds: If selected, GMass will throttle your campaign and delay for 5 to 10 seconds after each individual email is sent. See this article on the throttling feature. You also have the option to set a longer delay of 60-90 seconds.

Auto Follow Up: Have reminder emails sent at designated intervals to those people that don’t reply to the message you’re sending right now. Choose the interval, and the reminder text that should appear at the top of the original email. Detailed information on the auto follow-up feature.

Schedule: Choose whether to send this current email NOW or at some time in the future. Additionally, if you connected to a Google Sheets spreadsheet, an additional checkbox called “Repeat daily…” will also be shown. Checking this box will enable the automated recurring campaigns feature.

This is a living document and is updated when new features are added to the Settings box.

  1. I see you can spread your campaign over multiple days. It would be nice if you could select to send the entire campaign one email every X seconds. I've run into problems were Gmail blocks some emails because they were all sent at the same time.

  2. GMass hasn't been working for a while. I keep getting a pop up message saying, "Your mass email has NOT been processed by GMass. Error details: You have at least one link that has alread…" (rest is cut off). Any idea as to why this is happening?

  3. I must be doing something wrong.. I set the email up…It all looks good…I press the Gmass button..it send to 1 recipetant.. I am emailing about 600 people.. any ideas?

  4. Try sending it out in 3 equal batches of 200 at a time. It may be a little bit of a nuisance but I did that and it worked perfectly. Make sure your recipients are in the "To" not "Bcc".

  5. Hi, thanks for this add-on. When I create a new mail, all adresses appear on TO, intead of being sent 1 by 1. How can I cahnge this?

  6. Hey Sara, I'm a Gmass user. When you connect a spreadsheet, all the email addresses appear in the TO field at first. Rest assured that when you click Gmass (to send), all the emails will be sent 1 by 1 to every contact 🙂

  7. The fields in my outgoing message where not filled. For instance, the personalization did not occur during my mail merge.

    1. Please contact our support team through http://gmass.co/g/support – they’ll let you know what went wrong.

      It’s likely that either 1. your Personalization Tag didn’t perfectly match the column on your Google Sheet or 2. you sent with the Gmail Send button instead of your GMass button.

  8. I want to receive tracking information about the opens and clicks just in the gmass report, and not receive an email from gmass every single time someone opens my email. Where can I adjust that?

  9. I notice that when I hit the Auto-Followup button it appears to the right of the prior window and actually cuts off the right hand size of the window – causing me to not able to see the text of my followup messages. I can see 3/4 of the line I type and then the rest is cut off at the right side of the screen. I tried moving my browser to a larger screen and enlarging it but it did not solve this problem?

    1. Hi Doug,

      Please contact our support team through http://gmass.co/g/support with a screenshot of what you’re seeing on your end.

  10. How do I save the GMass settings?
    I untick the track boxes but next email they are ticked and some email servers are placing the email into spam

  11. After using Sendgrid it seems like all emails land on SPAM. You guys suggest me to use Sendgrid. i like to remove my self from it. i like to use gmass or gmail to send email can you guys help? all of my clients are telling me my emails land on spam only!!!! and i checked with you spam program and all go to SPAM as well. HELPPPP i discontinued with Send Grid how can i email my clients>? without getting spam? how many emails a day can i send to my clients to not get spam? Please stop sending me to your support website. SOMEONE JUST HELP ME!!!

  12. Is there a way to ONLY track opens that come from outside of my browser? In other words, I don’t want GMass to track as an “Open” an email that is in my “Sent” folder that I may have gone back to open and read.

    1. Hi T,

      Unfortunately, no since the tracking of opens are triggered when a pixel is downloaded when the actual opening of the email occurs. However, you can view your sent emails through the Send Copies label instead of your Send folder. The sent copies do not have the tracking pixel included so you’ll still be able to view your sent messages without triggering an open.

  13. How I can send mass email without they getting into my sent box. It is a big nuisance and a tedious job to get all these mass emails cleared from the sent box.

    1. Hi Orel,

      This was a glitch on our end that has since been resolved. Please contact our support team at https://www.gmass.co/blog/how-to-get-support-from-the-gmass-team/ if you’re still experiencing this issue.

  14. Hi. We have a free account for testing with our 1.000 customers. According to the information above in this post, “GMass will send as many emails as your account allows and save the rest for future days.”, that means to me that, if we have an account that only allows 50 messages per day, those 1.000 emails would be sent within 20 days and that’s ok for us, in fact we wrote 50 in the number of emails/day option. But then appears a message that says “free accounts are limited to sending 50 emails per rolling 24 hours. Don’t worry – you can come right back here to send your campaign afterward.”

    Could you explain, please if we have to create 20 lists of 50 email addresses an send 20 campaings, one at the time, to get the result we want?

    Thank you.

    1. Hi Carlos,

      Yes. Since GMass’ free accounts are limited to sending and scheduling campaigns of up to 50 emails per rolling 24 hours. This means that each day you are able to send/or schedule only up to 50 recipients. In your case, you would need to create 20 lists of 50 emails and send them one at a time over a span of 20 days.

  15. gmass is not working and sending any emails from last few hours which is 11 June 2019 from 1 pm IST ( GMT + 0530 hours )

    can you fix the issue

  16. if I am trying to send mail to more than 20 people GMASS is not sending the email immediately but scheduling it and than not sending it as per schedule. Can you please fix this issue with gmass thank you.

  17. I just confirmed if I am putting more than 5 email address in to: field GMASS is not sending emails immediately but scheduling it and than never sending them.

    GMASS Please fix this serious issue.

  18. Hi!

    Is there a way to stop the individual emails from appear in my sent folder? I cannot seem to find the answer for this

  19. i am trying to connect with smtp.sendgrid.net to send bulk mail but cant connect.

    kindly look into the matter


  20. I connect to gmail, I get to my website, now gmass send mails from my website .. how many emails you can send per day to my website mail to the problems would .. future ..

    1. Although Gmail accounts are officially limited to 500 emails per day, we have noticed over time that there are other factors that affect the send limits for an account. Age is a huge factor in this, as Google limit accounts to lower sending capacity until the account establishes its credibility. This is a measure to prevent scammers and spammers from opening accounts and sending at full capacity. 
      There’s some more information about these limits and factors here: https://www.gmass.co/blog/how-many-emails-can-you-really-send-with-gmass-and-gmail/

    1. You will need to subscribe to one of our paid subscription options to send more than 50 emails per rolling 24 hours.

  21. Scheduling # of emails per day doesn’t seem to be working for me. I have a free account, and I’m trying to limit my sending below 50 emails/day. GMass still wont’ send my campaign.

  22. Any way to remove GMASS’s promotional message from the bottom of my emails. I’m paying for this service – not to be a part of your promotional team. I’m getting negative feedback from my clients about the link and I want to remove it. How do I do that?

    1. The footer is only added on our minimal plan, you would need to upgrade to either the Standard or Premium version of GMass to remove the GMass footer. Please see https:/www.gmass.co/pricing

  23. Today i have recently purchase premium subscription on my domain account, but i cant send many emails from my account, only 20 mails sent to my account. please help me out this.

    1. Unfortunately, we actually do not use an app/service provider for email verification so we couldn’t really recommend one.

  24. One thing that I have noticed is the time zone for opening the email is wrong. I look at when the “opened” email is sent from Gmass and the time for the alert is 12:00pm my time but 7:00 pm for their time. They live in the same time zone as me. Is there a way to fix this through settings so the time zones are correct for my particular time zone?

    1. Hi Kevin,

      If you’re referring to the timestamps in notification emails and your campaign reports, they are currently all in GMT. At this time, we do not have the option to set the timezone on a per-user level which is why we use the GMT timezone globally.

    1. Hi Vikas,

      The sending limit is something that is enforced by Gmail, not by GMass. According to Google, regular G Suite accounts are limited to 2,000. But other factors like the age of the account, content of the Campaign, or reputation of the domain can affect your sending limit.

      There’s some more information about these limits here:

      You can configure your account with an external SMTP server if you’d like to send unlimited emails without Gmail-imposed sending limits. See: https://www.gmass.co/blog/unlimited-mail-merge-sending-gmail/

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