Email Security Hacks

Email is one your most important private information which need to be protected properly.

1. Using just one email account.

2. Holding onto spammed-out accounts too long.

3. Not closing the browser after logging out.

4. Forgetting to delete browser cache, history and passwords.

5. Using unsecure email accounts to send and receive sensitive corporate information. 6. Forgetting the telephone option

7. Not using the Blind Carbon Copy (BCC) option.

8. Being trigger happy with the "Reply All" button.

9. Spamming as a result of forwarding email.

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Never allow an e-mail client to fully render HTML or XHTML e-mails without careful thought. At the absolute most, if you have a mail client such as Microsoft Outlook or Mozilla Thunderbird that can render HTML e-mails, you should configure it to render only simplified HTML rather than rich HTML — or “Original HTML” as some clients label the option. Even better is to configure it to render only plain text.
If the privacy of your data is important to you, use a local POP3 or IMAP client to retrieve e-mail. This means avoiding the use of Web-based e-mail services such as Gmail, Hotmail, and Yahoo! Mail for e-mail you wish to keep private for any reason.
It’s always a good idea to ensure that your e-mail authentication process is encrypted, even if the e-mail itself is not. The reason for this is simple: You do not want some malicious security cracker “listening in” on your authentication session with the mail server.
Digitally sign your e-mails. As long as you observe good security practices with e-mail in general, it is highly unlikely that anyone else will ever have the opportunity to usurp your identity for purposes of e-mail, but it is still a possibility.
If, for some reason, you absolutely positively must access an e-mail account that does not authorize over an encrypted connection, never access that account from a public or otherwise unsecured network. Ever. Under any circumstances.