Question 1 Answer:
1 . Infections
Viruses have already been around for a long period, and can render a system worthless if not really dealt with. Fresh, more dangerous viruses and worms are being removed exponentially. Information indicate that 50 percent even more virus attacks were released in 2003 than the previous year. The January-March 2005 Mydoom computer virus outbreaks were the biggest the net has found to date. installment payments on your Spam
Unsolicited mail is expected to increase to 80 to 90 percent of total email. New viruses turn desktop PCs in spam-spewing " zombies. " There is also a new type of sending junk email technique called " scam, " used to dupe receivers into offering confidential personal identity data. You can expect the occurrence of the spam-virus mixed-style models to increase and develop into much more dangerous and damaging threats 3. Directory site Harvest Episodes (DHAs)
Also referred to as " book attacks, " this technique shop lifts proprietary data from corporate directories. During a DHA, spammers attempt to deliver messages to multiple addresses, such as [email protected] com, [email protected] com, and [email protected] com. Addresses that are not rejected by receiving postal mail server happen to be determined to get valid. These kinds of addresses happen to be compiled and sold to various other spammers around the world; companies who may have had their particular email addresses gathered are vulnerable to an ever-growing amount of junk mail. Approximately 30 to 40 percent of inbound SMTP connections throughout the corporate email gateway may be traced to DoS and DHA episodes. These dangers can overwhelm mail transfer agents (email servers) towards the point of shutdown. Problem 2 Answer:
1 . Turn off open relaying on most SMTP virtual servers.
2 . Prevent private access upon internal SMTP virtual computers and devoted SMTP digital servers pertaining to IMAP and POP customers. 3. Electronically sign and encrypt your Email.
Question 3 Solution:
You are going to let your remote users to relay mail via your mail server throughout the internet, as this will encrypt the user name and...