Settings on sending and receiving emails

You can change the settings for sending and receiving emails on IPs allowed for receipt, IPs not allowed for receipt, inbound gateway, routing, and mail authentication (DKIM).

Each of the subdomains that the administrator added can have separate sending/receiving settings applied.

Manage IPs allowed in the inbox

You can add or delete IPs allowed for receiving emails.

All emails from the permitted IP address are received and are not filtered by the spam filter created according to the spam policy.

Check IPs allowed in the inbox

In Mobile, you can only check the IP address registered in the list of IPs allowed in the inbox.

  1. Select ‘Service’ from the left to expand the menu and press ‘Mail’ to access the page.  On mobile, tap the button to access the menus.
  2. Press ‘Send/Receive’ on the top.
  3. Press ‘Manage’ on the right to the ‘IPs allowed for receipt’ texts to access the management page.
  4. Check the list of IPs allowed in the inbox.

Add IPs allowed for receipt

Add IPs allowed for receiving emails.

All emails sent from the added IP will not be filtered by the spam filter and will be sent to the ‘Inbox’.

Delete IPs allowed for receipt

Delete the registered IPs allowed for receipt.

Manage IPs not allowed in the inbox

You can add or delete IPs not allowed for receiving emails.

All emails from the IPs not allowed for receipt are blocked from receiving.

Check IPs not allowed in the inbox

  1. Select ‘Service’ from the left to expand the menu and press ‘Mail’ to access the page.  On mobile, tap the button to access the menus.
  2. Press ‘Send/Receive’ on the top.
  3. Press ‘Manage’ on the right to the ‘IPs not allowed for receipt’ to access the management page.
  4. Check the list of IPs not allowed in the inbox.

Add IPs not allowed for receipt

Add IPs not allowed for receiving emails from.

All emails sent from the added IP will be blocked from receiving.
However, if the same IP is in both the list for IPs allowed for receipt and not allowed for receipt, emails can be received.

Delete IPs not allowed for receipt

Delete the registered IPs not allowed for receipt.

You can check and delete IPs that have been blocked for a short time by using the ‘Recent block history’ sorting criteria at the top of the blocked IP list.

Inbound Gateway

Inbound Gateway is a function that helps you to build a separate server that filters spam and rejects emails with viruses.

LINE WORKS provides an Inbound Gateway function to add security solutions before the users receive emails.

To use an Inbound Gateway, you need to set up the MX record as the inbound gateway instead of LINE WORKS.

LINE WORKS does not sell or provide solutions that can use Inbound Gateway.

Inbound routing

You can send emails received in LINE WORKS that match the set conditions to another server.

The Inbound routing function can be used for various purposes: conducting a pre-test before introducing the LINE WORKS Mail service or archiving emails received in LINE WORKS to other external solutions.​

Inbound routing conditions and execution options

Outbound routing

Outbound routing can send emails from LINE WORKS to a server other than the original destination, and send additional emails to a previously used server for LINE WORKS pre-test.

Also, the Outbound Gateway function is integrated into Outbound routing for data loss prevention (DLP).

Outbound routing conditions and execution options

Manage routes

On the Manage routes page, you can easily add or edit server (route) information used in inbound routing and outbound routing.

You can enter the server you want by pressing the ‘Add’ button.
(The button for adding root is also provided for Outbound routing and Inbound routing.)

You cannot delete the route currently in use but can edit the information.

Mail Authentication (DKIM: DomainKeys Identified Mail)

You can prove to the recipient that the email has not been tampered with by adding a digital signature to the email header.

The outbound server signs the email with a private key, and the inbound server uses the sender’s public key to check the original mail and further regard authenticate as complete.

DKIM is currently provided by most global mail services, and an email sent using DKIM is considered highly reliable at the receiving end. Thus reduces the chance of an email block.

When sending an email in LINE WORKS, the DKIM signature is automatically on the worksmobile.com domain emails without having the DKIM signature on your domain.

​If you want to sign DKIM directly with your domain, or need DKIM signing to apply DMARC (Domain-based Message Authentication, Reporting and Conformance) policy, follow the steps below.

Mail Authentication (DKIM) settings

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