Version 5.1 - Build 335 (2009-03-15)
- SMTP: If the last header in an email message was Message-ID, hMailServer added a duplicate Message-ID header.
- Anti-spam: If the DKIM I tag contained the character "t", the verification would fail.
- Issue 182: Administrator: If you try to create an IP range where the Lower IP is higher than the Upper IP, an error message will now be shown.
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