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Advanced Bounce Handling

You now have more control over your account’s bounce list and how bounces are handled for your account. GMass’s reply management system automatically processes all incoming email after you send an email campaign, and categorizes bounces, unsubscribes, real replies, and even block notifications. By default, addresses that bounce, where the bounce message indicates a legitimately bad email address, are placed on an internal “bounce list” for your account. Future GMass campaigns are suppressed against your account’s bounce list to prevent you from sending future emails to addresses that have bounced in the past.

There may be cases, however, when you want to continue to send to bounced addresses. For example, if you’re a low volume mailer sending to just personal contacts, and an email address continues to be placed on your bounce list that you know to be legitimate, you may want to have your campaigns ignore bounces.

If you don’t want to have your campaigns ignore bounces, meaning you DO want your campaigns to suppress the addresses on your bounce list, you may want to delete one or more addresses from your bounce list. Sometimes email addresses can inadvertently end up on your bounce list even though they are legitimate. For example, if an address blocks you, but GMass detects it as a legitimate bounce instead of a block, then you will want to remove it from your bounce list. If you’ve configured your Gmail account to send via an alias address through an external SMTP server, and your SMTP server is misconfigured and bounces all of your addresses, you may want to clear out your entire bounce list. These are just examples, but there are lots of reasons you may want to delete some or all of your bounced email addresses.

Now you can do all of these things…

To have your campaigns ignore your bounce list

  1. Click Compose to launch a new window.
  2. Set the To field to bounces@gmass.co.
  3. Set the Subject to the word ignore.
  4. Leave the Message blank.
  5. Hit the GMass button. Do not hit the Send button.

To clear out your bounce list of all addresses

  1. Click Compose to launch a new window.
  2. Set the To field to bounces@gmass.co.
  3. Set the Subject to the word deleteall.
  4. Leave the Message blank.
  5. Hit the GMass button. Do not hit the Send button.

To clear out your bounce list of just certain addresses

  1. Click Compose to launch a new window.
  2. Set the To field to bounces@gmass.co.
  3. Set the Subject to the word deletesome.
  4. In the Message area, enter a list of addresses, one on each line, that you wish to delete from your Bounce list.
  5. Hit the GMass button. Do not hit the Send button.

Which option should you choose?

If you set your account to ignore bounces, then you don’t need to worry about ever deleting addresses from your bounce list, because your bounce list will now be irrelevant. Your future campaigns won’t use your bounce list to exclude recipients, so you don’t need to care what addresses end up on your bounce list.

You would only need to ever remove an address from your bounce list if your campaign is using the default setting of NOT ignoring your bounce list.

Additional Information

GMass filters all bounces under the GMass Reports –> Bounces Label. Here you can see the actual bounce notification received by Gmail. Note that simply deleting a message from the “Bounces” Label has no effect on your account’s bounce list. Deleting a message from the “Bounces” Label will NOT delete the corresponding bounced address from your account’s bounce list.

  1. How do we switch back on the automatic bounce list after previously setting it to ‘ignore your bounce list’ using the ‘ignore’ command in the subject line?

    I’ve been looking for a way to turn on automatic bounce detection.


      1. Hi Rashid,

        You may use “stopignore” as the command in the subject line to switch back to automatically suppressing email addresses in your bounce list for future emails.

  2. Muito bom!
    Agora preciso me familiarizar com esta Ferramenta!
    Vocês do Google sempre preocupam-se em pensar em tudo! por isso o vosso Sucesso!, cda vez mais crescente!!! Parabéns…

  3. How can we disable the bounce folder entirely? If an email bounces we’d like more immediate visibility in our inbox.

  4. I want bounced email addresses not to be used again in any future campaign, how gmass can automatically remove it from sheets?

    1. Hi Shubham,

      It is automatically suppressed by GMass. Please note that when an email bounces, GMass saves this bounced email address to your bounce list which are suppressed from being sent further emails through GMass (you can still send to these addresses via the regular Gmail button). However, please note that GMass does not edit your connected Google Sheet so even though your Sheet may contain addresses that have previously bounced, the list for a campaign is compared to your bounce list and any matching addresses would be suppressed from being sent. You may also download a complete list of your bounces so you can manually clean up your list. Please see https://www.gmass.co/blog/gmail-mail-merge-reports-and-analytics/

    1. Hi Fred,

      If you want to suppress emails from being sent to those addresses, please use unsubscribe@gmass.co instead. You cannot add to your bounce list as this is automatically populated by bounces received from email servers, you can, however, add them to your unsubscribes list to make sure emails through your GMass campaigns are not sent to those addresses.

    1. Hi Steve,

      In this case scenario, you would need to create a new campaign to add the different email addresses.

  5. I set my bounce list to ignore and cleared it of all bounces.

    Then sent a new campaign. Received lots of bounce notifications in Gmail, but none on the GMass campaign reports.

    How can I get a list of the bounces on this campaign?

  6. I want to add to my bounce list. Even if the address doesn’t bounce.

    Is there a way to do this?

    My goal is to ensure that GMass never emails someone I don’t want receiving.

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