This feature is available after applying for the Standard or Standard Plus plan of NAVER WORKS Core.

You can securely send important emails by setting the security level when writing emails.

For the security level, only the levels permitted by the administrator are displayed among 'General', 'Restricted', 'Confidential', and 'Non-business'.

For emails set as 'Restricted' or 'Confidential', they cannot be sent to an external address. When replying or forwarding, the previously set security level, expiration date, and forwarding option values cannot be edited or deleted.
For emails set as 'Non-business' emails can be sent for non-business purposes, and are excluded from footers and as monitoring targets for sent emails. However, they will be included in the scopes of Audit and Archiving.
If you select 'Restricted' or 'Confidential', you can set the expiration date and the option on prohibiting forwarding.

After the expiration date, the email is automatically deleted from the recipient's mailbox, and may also be deleted from the sender's mailbox depending on the administrator setting options.

If forwarding prohibited is set to use, you cannot forward emails received to others or add a new address when replying to selected people or replying to all.

Security level settings

Mobile

Tap in the email you are composing.
Tap 'Security Level'. Depending on the content and importance of the email, you can select one of the following security levels: 'General', 'Restricted', 'Confidential', and 'Restricted'.
When you select 'Restricted' or 'Confidential', you can set the expiration date and whether to prohibit forwarding.
- Expiration date: The deadline on which you can check the email. Emails will be automatically deleted after the valid period. You can select among None, 1 day, 1 week, 1 month, or 3 months.
- Forwarding prohibited: Change the setting to make sure received emails cannot be forwarded to others.
Tap 'Confirm'.

PC Web

Click on the top.
Click 'Mail'.
Click 'Compose' in Mail.
Select a security level from the 'Security' field. Depending on the content and importance of the email, you can select one of the following security levels: 'General', 'Restricted', 'Confidential', and 'Non-business'.
When you select 'Restricted' or 'Confidential', you can set the expiration date and whether to prohibit forwarding.
- Expires after: The deadline on which you can check the email. Emails will be automatically deleted after the set period. You can select among None, 1 day, 1 week, 1 month, or 3 months.
- Forwarding prohibited: Change the setting to make sure received emails cannot be forwarded to others.

Change the security level

You can change the security level of an email.

Mobile

Tap 'Security Level' in the email you are composing.
Select the level, expiration date, and whether to prohibit forwarding and tap 'Confirm'.

PC Web

Select the security level in the 'Security' section of the email you are composing.
Select the expiration date or whether to prohibit forwarding.

Delete the security level

Mobile

In the email you are composing, tap beside Security Level to delete the security level. After deleting the security level, you can set another one again.

PC Web

On the top of an email you are composing, click on the right side of the set security level value.