24 Oct 2017 
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 Cannot send email: No valid recipient error
 Symptom: Client using Outlook reports that sending mail fails with an undeliverable notice. The error message in the undeliverable notice indicates a 503 (No valid recipient/recipient must precede data) error. Cause: Outlook settings must be modified t
 How can I reduce the amount spam I receive?
 The following steps will help to dramatically reduce the amount of spam seen in your mailbox. 1. Set the default address to :fail: (with the leading and trailing colons). Spammers have rendered the default/catchall address concept useless, by continual
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