Unsolicited marketing emails, or spam, are illegal, but because they continue to be a major problem, computer security software can be used to block them. People are easily annoyed when they receive an email that's irrelevant to them, and they're likely to delete unsolicited messages from your club without reading them.
But an email to an existing customer or contact, who has agreed to receive marketing from you about products or services, may well be valuable to them. Even if they don't buy from you immediately, they're more likely to do so in the future.
Keeping it relevant
















