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by baudehlo
4283 days ago
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Another great reason to have a good filtering proxy in front of qmail, such as Qpsmtpd or my own Haraka. Both validate MAIL FROM and RCPT TO commands to ensure they are valid according to RFC 5321 (the newer version of RFC 2821), and will reject any command not complying with those specifications. Qmail alone is just too fragile. |
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