We are writing to inform you that an upcoming activity will be performed on the FortiMail Cloud Japan KMG DC site as part of internal site changes. This activity will result in changes to the inbound IP addresses used by your service.
As part of this activity, the following inbound IP addresses for the Japan KMG site will be updated as follows: IP Address Change Details: • 154.52.29.130 —> 176.23.144.130 (For LDAP and remote logging) • 154.52.29.131 —> 176.23.144.131 (Email Delivery (SMTP)) • 154.52.29.132 —> 176.23.144.132 (MX Record (-1/-2))
The following changes are required on your side: 1. Whitelist 176.23.144.131 to allow email delivery from the FortiMail Cloud tenant to your SMTP server, if the Recipient Address Verification (RAV) server and the SMTP server use the same IP address. 2. Allow 176.23.144.130 if you are using Recipient Address Verification (RAV) and LDAP server IP differs from your SMTP server IP.
Maintenance Window: JST: June 6, 2026 | 12:00 AM – 5:00 AM EDT: June 5, 2026 | 11:00 AM – 4:00 PM
Important Notes: • There is no change to MX records; your mail routing configuration remains unaffected. • Email delivery and security filtering services are expected to continue operating normally. • If you require any further clarification or assistance, please feel free to reach out to the SE at any time.
This activity is intended to support High Availability (HA) pairing and to maintain service stability and performance for FortiMail Cloud customers.
Posted May 14, 2026 - 14:05 UTC
This scheduled maintenance affects: Datacenters ((Japan) Japan KMG).