|
Author: Christoph Puetz Article source: http://www.selfseo.com/. Used with author's permission.
Very often SPAMMERS take advantage of catch-all email setup on webservers. Every email no matter what the recipients email address is will be caught by the default email account. It is highly recommended not to use catch-all email accounts and to discard SPAM send to non-existing email addresses. SPAM will clog up your SMTP server and consum resources like bandwidth and disk space in mailboxes. In most mail servers and web control panels (like cPanel) the user or admin can decide what will happen to emails with no existing recipient on the server. Refuse to the let emails onto the server and to let the sender's mail server deal with it (option: ":fail:") or to accept these incoming messages but then to delete them right away (option: ":blackhole:".
Our conclusion:
:fail: is the preferred option over :blackhole:.
The :blackhole: option accepts everything sent to the domain mail server and then throws away the email going to a non-existing email account. This option uses the full amount of bandwidth, and also requires that the server be reading and writing messages to disk before they are deleted... multiply this by 1,000 messages a day or so and you can imagine the impact onto your server resources. Imagine your an email address from your domain (a non-existing one) has been spoofed to send out SPAM messages that even carry a virus. Most natural many of these messages will bounce back and hit your mail server. Your web server would have to deal with thousands of attachments at a time. Performance will go down - no matter what.
:fail: stops emails send to invalid recipients from entering the mail server in the first place..Exim will reject each message during the smtp handshake conversation - therefore the actual email message will never make it to your server. It is being refected from entering your system and the sender's email server has to deal with the stuck message. This option is also the better one for legitimate emails where the sender has actually mis-spelled the recipients email address. He would get a bounce message informing him so that the error can be corrected. Depending on your hardware - a server can handle many more :fails: than it can do :blackholes:. This article can be published by anyone as long as a live back link to http://www.webhostingresourcekit.com is provided. (this note can be removed as long as a link from the author's resource box is provided)
Christoph Puetz is a successful small business owner (Net Services USA LLC) and international author.
Guides, Tutorials, and Articles for small businesses - http://www.webhostingresourcekit.com
It Really Is Simple RSS
I have 'Googlebot' coming to my site every day since a month ago I put up my first news feed, since then I have put up yet another. I never used to see 'Google...
Shop Around for a Mortgage
If you have decided to take the leap into home ownership or you are interested in refinancing your current mortgage, one of the first things you will need to do...
Families That Hit Pine Cones Together Stay Together
It is said that families that pray together stay together. I think it's almost equally true that families that play together stay together. If play time is the ...
Networking - Facts to Ponder
Network marketing has a 45 year old track record worldwide of producing more millionaires than any other single industry. Every other country worldwide has alr...
The Science of Carbohydrate Loading
A valid connection between hypoglycemia, fatigue and premature termination of exercise been firmly established and therefore carbohydrate loading is a proven fo...
6 Steps on How to Install Confidence Into Your Clients
What methods can we use to install confidence into your clients?
5 Ways of Increasing Business Profits
A simple concept for figuring out what steps to take to grow a business
Top 10 Tips on Managing Conflict, Emotional Tension, and Anger
To be a safe and predictable person for those around you at work and at home, it is essential that you are able to maintain your composure when you feel like yo...
Handling Redundancy
Redundancy is indiscriminate, indeed, it is often the best performers who take the redundancy option. This article looks at the place of redundancy in the worl...
Make Artistic Graphic Designs
Putting art into your graphic designs can be done with your actual ability to draw. Here are several reasons why getting into a good drawing class can become a ...
Gurgle Gurgle
Caught in a whirlpool and being sucked under. No life vest or other device to save you. Gurgle, gurgle. Down you go.
Expected Value in Texas Holdem Poker
Discussion of the mathematics of expected value and how it relates to online texas holdem poker
The Hurricane that Hit on Halloween
This 2005 Tropical Hurricane Season has been truly horrific but will we see a Hurricane that hit on Halloween? That would be much more scary than the little wit...
12 Key Internet Marketing Terms - Your Guide
All industries have their own unique terminology and colloquialisms - Internet Marketing is no different. If you're just starting out, before you get to achiev...
How I Use Internal Linking To Boost My Rankings
One thing that I still see when I surf the web, is websites that
use "click here" in the text of the internal links when they want
people to visit another pag...
There is No Easy Way
Many very successful people in the corporate world are chosen for important assignments and projects at work. They then get frustrated, while trying to become a...
Catholic Voters Need to Rethink Morality
If Catholic doctrine calls for the sanctity of all human life, then why is it that church leaders implicitly endorse Republican candidates that are pro-life at ...
Selecting A Credit Counselor; Asking The Right Questions.
When you turn your financial life over to a credit counseling service remember, it is still your money. You want to choose the right one. Here are some question...
A Tip for Finding Willing, Quality Links
Google might not dominate the search engine world like it did last year, but it's still a big player and can account for a lot of your traffic. It's no secret ...
How to Handle Child Tantrums?
Child tantrums are a way for children to express their feelings and thoughts. Child tantrums are common in young children. Children below the age group of 4 are...
Call No Man Father
Call no man Father A look at deception and Consequences. The institution of the Christian religion was and is still based on the words of Jesus and the Holy...
Warm Up the Night! Patio Heaters and Fire Pits
In some areas right now, the weather is ideal for sitting outside in the evening -- the bugs have gone and the sky is clear -- but the nights are chilly. Don't ...
More Money & Less Stress?
At 2pm last Wednesday, I got a call from one of my clients. Before I could barely utter my "hello," she launched headlong into her story - "I am so frustrated! ...
Why Should You Care About Your Web Site Colors?
**How Colors are Used in web design:** Demarcates screen elements into groups- You can pu a blue background for your navagational bar and white for rest of your...
|
Print this page