FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
This article describes troubleshooting steps to resolve cases where authentication codes are not received through SMS while using a FortiGuard SMS service.
Scope
FortiGate.
Solution
Check the FortiGuard server status and ensure the device has an SMS service license.
Take the alertmail application debug to see if the FortiGate is triggering the SMS.
diag debug reset
diag debug application alertmail -1
diag debug enable
Afterward, trigger the authentication code to be sent via SMS from the GUI.
Check the server status and available SMS quota.
execute fortiguard-message info
output example:
Controller server status: registered Expiry date: 20240712 SMS max allowed: 170 SMS used: 32 Last update: Tue Aug 15 14:10:24 2023
Current message server: x.x.x.x:443 Message server status: unknown
Take note of the 'current message server' IP address from the above output. After, run the following command with the IP address:
diag sniffer packet any "host <paste message server IP address>" 6 0 a
Similarly, it is possible to send SMS through SMTP, but it is a bit complex setup-wise. Statically send it as an email to <phone-number>@<your-domain>.
It is possible to buy additional credits to top up for that, reach out to the SE or Customer Service Team.
