退信

• 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"
• 退信提示："Requested mail action not taken: too much recipient"
• 退信提示："Requested mail action not taken: too much rcpt fail"
• 退信提示："Requested mail action not taken: too much error"
• 退信提示："Requested mail action not taken: too much delivery in this connection"
• 退信提示："Requested mail action not taken: too much command"
• 退信提示："Requested mail action not taken: NULL helo domain is not allowed"
• 退信提示："Requested mail action not taken: spf reject"
• 退信提示："Requested mail action not taken: Invalid IP"
• 退信提示："Requested mail action not taken: Fake sender"