Fortinet FortiMail 400C — End-of-Life & EOSL Dates
Fortinet FortiMail 400C email security appliance. Published end-of-order (end-of-sale) and end-of-support (EOSL) dates from Fortinet's public hardware Product Life Cycle feed, linked for verification.
Every tracked Fortinet FortiMail 400C SKU group is past Fortinet end of service life (last group Nov 2022). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure.
End of sale
Sep 2016 – Nov 2017
Last date of support
Sep 2021 – Nov 2022
Part numbers
2
59
months past last support
Why this score
- Past end of service life — 59 months ago
- Vendor-published date, source-linked
- Category: email security appliance
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Part numbers in this family
Dates vary across 2 groups in this family, so every row carries its own. Find your exact part before you plan.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| FortiMail-400C | Fortinet FortiMail-400C email security appliance | Sep 2016 | Sep 2021 | Past support |
| FortiMail-400C-G | Fortinet FortiMail-400C-G email security appliance | Nov 2017 | Nov 2022 | Past support |
Options from here
The Fortinet FortiMail 400C is past Fortinet end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today. Set a migration timeline and budget.
Low-criticality role: document the risk, harden backups, retire on your terms.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Fortinet FortiMail 400C — questions
Is the Fortinet FortiMail 400C end of life?
Yes. Every tracked FortiMail 400C SKU group is past its last date of support.
What is the last date of support for the FortiMail 400C?
Last dates of support across FortiMail 400C SKU groups range from Sep 2021 to Nov 2022.
Where do these FortiMail 400C dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official Fortinet end-of-sale bulletin it was taken from.
On the same timetable
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