Tuesday, February 16, 2010

About Computer Networking: Email Needs Network Bandwidth, Too

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From Bradley Mitchell, your Guide to Computer Networking
Do you get too much email? Everyone I know does. With social network media like Twitter, Facebook and friends allegedly taking over all the conversation, you'd think that old-fashioned electronic mail would be just about obsolete now (kind of like radio and fax). Yet email (kind of like radio and fax) marches on and keeps everyone and their network surprisingly busy. Why is that?

How to Find the IP Address of An Email Sender
Internet emails are designed to carry the IP address of the computer from which the email was sent. This IP address is stored in an email header delivered to the recipient along with the message. Email headers can be thought of like envelopes for postal mail. They contain the electronic equivalent of addressing and postmarks that reflect the routing of mail from source to destination.

How To Check The Status of the RIM BlackBerry Network
If you're exceptionally curious about the status of the BlackBerry data network, there are a few methods available to monitor its real-time status. But nothing so simple as hitting a Web page. Why is that?

Look Up Suspicious IP Addresses on DNS Blacklists
A DNS blacklist (DNSBL) is a database that contains the IP addresses of malicious hosts on the Internet. These hosts are typically email servers that generate large volumes of unsolicited mail messages (spam) or other Internet servers used for network attacks. A DNSBL tracks servers by IP address and also within the Internet Domain Name System (DNS).

DISCUSS: Network Settings and Vista PC File Sharing
Ever since Microsoft Vista was released a few years ago, our readers have reported various problems getting their Vista computers to share folders with other Windows PCs on the local network. If you've recently moved to a different residence, use Vonage VoIP on your network, or have a mix of different versions of Microsoft Windows, you'll want to see the solution to our reader's current problem.

 


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This newsletter is written by:
Bradley Mitchell
Computer Networking Guide
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