退信

• 退信提示："rcpt is rejected"
• 退信提示："Requested action not taken: Local user only"
• 退信提示："Requested action not taken: NULL sender is not allowed"
• 退信提示："sender is rejected"
• 退信提示："IP is Hangup"
• 退信提示："IP is rejected"
• 退信提示："User suspended"
• 退信提示："User rejected"
• 退信提示："User not found"
• 退信提示："User in blacklist"
• 退信提示："User hangup"
• 退信提示："Deliver to local user only"
• 退信提示："Deliver to local provider only"
• 退信提示："Deliver to local org only"
• 退信提示："Deliver from local user only"