Controlling e-mail access

You should control who accesses your system through e-mail to protect your data from malicious attacks.

Control e-mail access provides tips for protecting your e-mail servers from flooding and spamming.

• Controlling Simple Mail Transfer Protocol access
  To prevent your system from being attacked by malicious or unsolicited mail (spam), you should control Simple Mail Transfer Protocol (SMTP) access.

• Controlling Post Office Protocol access
  To ensure the security of your system, you should control Post Office Protocol (POP) access.

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