2.) Is it better to run antispam at the external MTA or on the e-mail client (such as Outlook)? Answer
3.) A company recently announced that its antispam product has no false positives. How is this possible? Answer
4.) You have designed an antivirus strategy that says that all messages with viruses in them are deleted, while all messages without viruses in them are passed on. What have you forgotten? Answer
5.) When mail is received at an SMTP MTA, it is not always known whether the recipient is valid. If, later on, the recipient is found to be invalid, it's probably because the message is spam. What's wrong with simply deleting that message? Answer
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