Email Hygiene

Practicing good email hygiene is a bit of a technical voodoo art. Some smart behaviour can prevent viruses, spam, blacklisting, and other terrible things.

It includes things like

• Don't give out your email address too often and in public places
• Don't share your password
• Don't use the same password on different accounts and services
• Use complex passwords (there are lots of opinions about what a complex password is)
• Change your password occasionally, or possibly your email address too.
• Don't use an obvious email address (i.e., avoid accounts@ info@ and admin@ etc.)
• Have separate throw-away email address(es)
• Don't subscribe to dodgy services.
• Have an SPF record in DNS to help prevent email spoofing (I can help)
• Use a spam blocker,  info: https://support.enlightenhosting.com/hc/en-us/articles/360029922692-Spam-blocking
• Use a virus checker
• Use an inbox rule. tip: https://support.enlightenhosting.com/hc/en-us/articles/360032813411-Custom-inbox-rule-webmail
• Learn how to spot suspicious emails
• Check before clicking links, or opening documents in emails
• Check with and subscribe to to breach services (I can recommend https://haveibeenpwned.com/ )
• Keep your desktop and other devices secure
• Follow other general email best-practices -(some tips here:  https://support.enlightenhosting.com/hc/en-us/articles/208175186-Email-best-practices )
• Consider Spear-Phishing and Whaling https://www.cert.govt.nz/business/common-threats/protecting-your-business-from-spear-phishing-and-whaling

Marketing

• Use a different email address for any marketing
• Don't send marketing messages with lots of CCs; use separate messages.
• Use a professional email marketing platform (such as mailchimp) rather than your own email system for bulk mail-outs
• Follow anti-spam law: https://www.dia.govt.nz/Spam-NZ-Spam-Law-for-Businesses and http://www.legislation.govt.nz/act/public/2007/0007/latest/whole.html#DLM405198

I'm sure you can google more and different advice, it's a bit of a balance between usability and security and there are lots of opinions.