[Email Archive] Connection Procedure (Google Workspace)

Target

• Customers using Email Archive with Google Workspace

Purpose

• This article explains how emails sent and received via Google Workspace (Gmail) are archived in Email Archive.

Notes

1. The content of this article is based on the product as of June 2026 and is subject to change without notice.
2. The latest domain information in Google Workspace must be registered with HENNGE.
   If registration is required, please apply for domain addition from the article below.
   I want to add a domain in use
3. There are many similar items, so please be careful when configuring the settings.

Procedure

Pre-configuration Checklist

1. Access the Google Workspace [Google Admin console].

   

2. From the left menu, open [Apps] – [Google Workspace] – [Gmail].

   

3. Open [Default routing], review the contents, and if there are existing settings, take a screenshot showing the configuration and send it to us before proceeding with this connection work.

   

   

4. Return to [Gmail], open [Email Routing], review the contents, and if there are existing settings, take a screenshot showing the configuration and send it to us before proceeding with this connection work.

   

Add Google Workspace Host

1. Access [Google Admin console] – [Apps] – [Google Workspace] – [Gmail].

2. Go to [Hosts] – [Add route], enter the following values, and click [Save] to create a total of 4 hosts.

Host 1

• Name: HENNGE Email Archive (rsmtpd_inbound)
• Hostname: in.r01.hdems.com
• Port number: 25
• Options: Check [Perform MX lookup on host] and [Require secure (TLS) connections for sending and receiving email]
  * Do not check [Require CA signed certificate] and [Verify certificate host].

Host 2

• Name: HENNGE Email Archive (rsmtpd_outbound)
• Hostname: out.r01.hdems.com
• Port number: 25
• Options: Check [Perform MX lookup on host] and [Require secure (TLS) connections for sending and receiving email]
  * Do not check [Require CA signed certificate] and [Verify certificate host].

Host 3

• Name: HENNGE Email Archive (bsmtpd_inbound)
• Hostname: in.r02.hdems.com
• Port number: 25
• Options: Check [Perform MX lookup on host] and [Require secure (TLS) connections for sending and receiving email]
  * Do not check [Require CA signed certificate] and [Verify certificate host].
  If checked, emails will not be archived.

Host 4

• Name: HENNGE Email Archive (bsmtpd_outbound)
• Hostname: out.r02.hdems.com
• Port number: 25
• Options: Check [Perform MX lookup on host] and [Require secure (TLS) connections for sending and receiving email]
  * Do not check [Require CA signed certificate] and [Verify certificate host].
  If checked, emails will not be archived.

* Example of host configuration

* Example after host addition is complete

Add Google Workspace Email Routing Settings

1. Access [Google Admin console] – [Apps] – [Google Workspace] – [Gmail].

2. Follow the steps below in order to create 4 Email Routing Settings.
   * For the values to be set in Email Routing Settings, please refer to [Service List] – [HENNGE Email Archive] – [Connection Settings] in the Customer Portal.
   [Customer Portal] How to check the HENNGE One service list

Email Routing Setting 1+

1. Click [Email Routing] – [Settings].
   * If other Email Routing Settings already exist, click [Add another rule] instead of [Settings].
2. When the popup opens, enter [HENNGE Email Archive (rsmtpd_inbound)] in the description field for [Email Routing].
3. Under [1. Effect on email], check [Receive].
4. Under [2. For the above types of messages, perform the following actions] – [Select all account types to apply this action to] – check both [Active user accounts] and [Group accounts].

5. Under [2. For the above types of messages, perform the following actions] – [Other recipients] – check [Add recipient], then click [Add] when it appears.

6. In the "Add setting" screen, click [Basic], then select [Advanced].

7. On the "Add setting" advanced screen, check [Change route] under [Route], and select [HENNGE Email Archive (rsmtpd_inbound)] from the dropdown menu.

8. On the "Add setting" advanced screen, under [Spam and delivery options], check [Do not deliver spam to this recipient] and [Do not deliver bounce messages from this recipient to the sender].

9. On the "Add setting" advanced screen, under [Headers] – check [Add custom header], then click [Add] when it appears.

10. On the "Add setting" – [Add header] screen, configure as follows, click [Save] to close, and return to the "Add setting" – [Advanced] screen.
    Header key: Hdems-Archive-Domain
    Header value: Your main domain

    Example of adding a header

    

11. On the "Add setting" – [Advanced] screen, click [Save] to return to the "Add setting" screen.

    "Add setting" – [Advanced] screen example

    

12. On the "Add setting" screen, click [Save] to close.

    "Add setting" screen example

    

Email Routing Setting 2+

1. Click [Email Routing] – [Add another rule].
2. When the popup opens, enter [HENNGE Email Archive (rsmtpd_outbound)] in the description field for [Email Routing].
3. Under [1. Effect on email], check both [Send] and [Internal - send].
4. Under [2. For the above types of messages, perform the following actions] – [Select all account types to apply this action to] – check [Active user accounts] only.

5. Under [2. For the above types of messages, perform the following actions] – [Other recipients] – check [Add recipient], then click [Add] when it appears.

6. In the "Add setting" screen, click [Basic], then select [Advanced].

7. On the "Add setting" advanced screen, check [Change route] under [Route], and select [HENNGE Email Archive (rsmtpd_outbound)] from the dropdown menu.

8. On the "Add setting" advanced screen, under [Spam and delivery options], check [Do not deliver spam to this recipient] and [Do not deliver bounce messages from this recipient to the sender].

9. On the "Add setting" advanced screen, under [Headers] – check [Add custom header], then click [Add] when it appears.

10. On the "Add setting" – [Add header] screen, configure as follows, click [Save] to close, and return to the "Add setting" – [Advanced] screen.
    Header key: Hdems-Archive-Domain
    Header value: Your main domain

    Example of adding a header

    

11. On the "Add setting" – [Advanced] screen, click [Save] to return to the "Add setting" screen.

    "Add setting" – [Advanced] screen example

    

12. On the "Add setting" screen, click [Save] to close.

    "Add setting" screen example

    

Email Routing Setting 3+

1. Click [Email Routing] – [Add another rule].
2. When the popup opens, enter [HENNGE Email Archive (bsmtpd_inbound)] in the description field for [Email Routing].
3. Under [1. Effect on email], check [Receive].
4. Under [2. For the above types of messages, perform the following actions] – [Select all account types to apply this action to] – check both [Active user accounts] and [Group accounts].

5. Under [2. For the above types of messages, perform the following actions] – [Other recipients] – check [Add recipient], then click [Add] when it appears.

6. In the "Add setting" screen, click [Basic], then select [Advanced].

7. On the "Add setting" advanced screen, check [Change route] under [Route], and select [HENNGE Email Archive (bsmtpd_inbound)] from the dropdown menu.

8. On the "Add setting" advanced screen, under [Spam and delivery options], check [Do not deliver spam to this recipient] and [Do not deliver bounce messages from this recipient to the sender].

9. On the "Add setting" advanced screen, under [Headers] – check [Add custom header], then click [Add] when it appears.

10. On the "Add setting" – [Add header] screen, configure as follows, click [Save] to close, and return to the "Add setting" – [Advanced] screen.
    Header key: Hdems-Archive-Domain
    Header value: Your main domain

    Example of adding a header

    

11. On the "Add setting" – [Advanced] screen, click [Save] to return to the "Add setting" screen.

    "Add setting" – [Advanced] screen example

    

12. On the "Add setting" screen, click [Save] to close.

    "Add setting" screen example

    

Email Routing Setting 4+

1. Click [Email Routing] - [Add another rule].
2. A popup will appear. In the [Description] field for [Email Routing], enter [HENNGE Email Archive (bsmtpd_outbound)].
3. In [1. Effect on email], check both [Send] and [Internal - Send].
4. In [2. For the above types of messages, perform the following actions] - [Select all account types to apply this action to] - check only [Active user accounts].

5. In [2. For the above types of messages, perform the following actions] - [Other recipients] - check [Add recipient], then click the displayed [Add].

6. On the "Add Settings" screen, click [Basic] and select [Advanced].

7. On the "Add Settings" advanced screen, check [Route] - [Change route], then select [HENNGE Email Archive (bsmtpd_outbound)] from the displayed pull-down menu.

8. On the "Add Settings" advanced screen, under [Spam and delivery options], check [Do not deliver spam to this recipient] and [Do not deliver bounce messages from this recipient to the sender].

9. On the "Add Settings" advanced screen, under [Header] - check [Add custom header], then click the displayed [Add].

10. On the "Add Settings" - [Add Header] screen, configure as follows, then click [Save] to close and return to the "Add Settings" - [Advanced] screen.
    Header key: Hdems-Archive-Domain
    Header value: Your main domain

    Example of Add Header screen

    

11. On the "Add Settings" - [Advanced] screen, click [Save] to return to the "Add Settings" screen.

    Example of "Add Settings" - [Advanced] screen

    

12. On the "Add Settings" screen, click [Save] to close.
    This completes the configuration.

    Example of "Add Settings" screen

    

Image after completing Email Routing addition

Connection Verification

Check whether the connection has been completed successfully.
[Email Archive] Operation Test