Microsoft Exchange 5.5
Microsoft Exchange 5.5 reached end of life 20 years ago.
Supported now: Microsoft Exchange subscription (no announced date)
Facts
- Released
- (28 years ago)
- Active support ended
- (22 years ago)
- Security support ended
- (20 years ago)
- Latest release
- 5.5.2653, (25 years ago)
- Source
- endoflife.date (checked 2026-09-09)
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