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New external user not getting verification email

  • June 18, 2026
  • 3 replies
  • 50 views

I have sent an invite to a user and they have accepted it (I received the confirmation email), but when they try to set-up their account the email to verify the account does not come through. They have checked spam/junk. Is there another way to set them up?

Best answer by Rona Box

Hi ​@ttimko

Welcome to Box Community, and we’re here to help with your external user’s confirmation email! 

 

Thanks for confirming that the user has already checked his/her inbox or spam/junk folder. Aside from this, there are a few things your user should check. 

 

Please have the affected user to check the following to ensure that he/she’s correctly receiving email from Box: 

  • Firewall, Content Filter, or Email Security Policy: Check if your firewall or virus scan is blocking the email notifications. Contact your Internet Service Provider (ISP) or Corporate IT department and ask that emails from the following domains be added to the email allow list (safe sender) to ensure that Box messages are not blocked.
    • box.com
    • notify.box.com
    • reply.box.com
    • track.box.com
  • Incorrectly typed email address: Is the sender using your correct email address? Just one mistyped letter will cause an email to go to the wrong address or make it undeliverable. Ask them to double-check that they entered your address correctly.
  • Email on suppression list: If Box notifications ever bounce, emails are automatically added to our suppression list. If the email address(es) is correct and able to receive emails, it can be removed from our suppression list. To do so:
    • Log in to the Admin Console and navigate to the Notifications settings.
    • Remove the affected email address(es) using the Suppression List feature.

      One avoidable reason for getting on the Box suppression list is from creating a new Box account before your actual mailbox or email account is set up.

  • Email scanning issues: If you are experiencing scanning issues, check the HTML code of the templates for any changes and adjust your scripts.

Lastly, the user can reset his/her password in order to get a new link and setup his/her password. 

 

Please check out  this article for reference and hope it helps! 

3 replies

Rona Box
  • Community Manager
  • Answer
  • June 18, 2026

Hi ​@ttimko

Welcome to Box Community, and we’re here to help with your external user’s confirmation email! 

 

Thanks for confirming that the user has already checked his/her inbox or spam/junk folder. Aside from this, there are a few things your user should check. 

 

Please have the affected user to check the following to ensure that he/she’s correctly receiving email from Box: 

  • Firewall, Content Filter, or Email Security Policy: Check if your firewall or virus scan is blocking the email notifications. Contact your Internet Service Provider (ISP) or Corporate IT department and ask that emails from the following domains be added to the email allow list (safe sender) to ensure that Box messages are not blocked.
    • box.com
    • notify.box.com
    • reply.box.com
    • track.box.com
  • Incorrectly typed email address: Is the sender using your correct email address? Just one mistyped letter will cause an email to go to the wrong address or make it undeliverable. Ask them to double-check that they entered your address correctly.
  • Email on suppression list: If Box notifications ever bounce, emails are automatically added to our suppression list. If the email address(es) is correct and able to receive emails, it can be removed from our suppression list. To do so:
    • Log in to the Admin Console and navigate to the Notifications settings.
    • Remove the affected email address(es) using the Suppression List feature.

      One avoidable reason for getting on the Box suppression list is from creating a new Box account before your actual mailbox or email account is set up.

  • Email scanning issues: If you are experiencing scanning issues, check the HTML code of the templates for any changes and adjust your scripts.

Lastly, the user can reset his/her password in order to get a new link and setup his/her password. 

 

Please check out  this article for reference and hope it helps! 


  • New Member
  • July 10, 2026

同僚がBOXからの確認メールを受け取れない状態です。
外部の会社から招待メールを受け取り、情報を入力し、
「アカウントを作成しました。確認メールを送ります」
の画面になりましたが、確認メールが届きません。
その後、管理者に相談し一度コラボレータから削除してからの再招待をしてもらいましたが、そのメールも来なくなりました。
メールの受信設定も見直しましたが、問題はありませんでした。

何か対処方法がありますか?
 

A colleague is unable to receive the confirmation email from BOX.
They received an invitation email from an external company, entered their information,
and saw the screen that said, “Your account has been created. A confirmation email will be sent,”
but the confirmation email never arrived.
They then consulted the administrator, who removed them from the list of collaborators and re-invited them, but that email didn’t arrive either.
We also checked their email settings, but found no issues.

Is there anything we can do to resolve this?


Translated with DeepL.com (free version)


Rona Box
  • Community Manager
  • July 10, 2026

Hi ​@Karatsu, welcome to Box Community! I moved your post to this related thread and please follow the suggested troubleshooting steps. 

 

Please have the affected user to check the following to ensure that he/she’s correctly receiving email from Box: 

  • Firewall, Content Filter, or Email Security Policy: Check if your firewall or virus scan is blocking the email notifications. Contact your Internet Service Provider (ISP) or Corporate IT department and ask that emails from the following domains be added to the email allow list (safe sender) to ensure that Box messages are not blocked.
    • box.com
    • notify.box.com
    • reply.box.com
    • track.box.com
  • Incorrectly typed email address: Is the sender using your correct email address? Just one mistyped letter will cause an email to go to the wrong address or make it undeliverable. Ask them to double-check that they entered your address correctly.
  • Email on suppression list: If Box notifications ever bounce, emails are automatically added to our suppression list. If the email address(es) is correct and able to receive emails, it can be removed from our suppression list. To do so:
    • Log in to the Admin Console and navigate to the Notifications settings.
    • Remove the affected email address(es) using the Suppression List feature.

      One avoidable reason for getting on the Box suppression list is from creating a new Box account before your actual mailbox or email account is set up.

  • Email scanning issues: If you are experiencing scanning issues, check the HTML code of the templates for any changes and adjust your scripts.

Lastly, the user can reset his/her password in order to get a new link and setup his/her password. 

 

Please check out  this article for reference and hope it helps!