Software in a mail server that delivers messages to recipients. When you get a MAILER-DAEMON@whatevercompany.com message in your inbox, the server at that company is informing you that it is returning your message because of some failure. The "to" e-mail address may no longer be valid, or there may be a problem routing the message to the appropriate mail server. Your domain name may be on a blacklist, and the server is refusing all incoming messages from it. See blacklist.
Chances are also good that you never sent the message in the first place. Your e-mail address could have easily been copied by a worm from someone else's address book and used as a "from" address without your knowledge. See daemon and e-mail virus.
Chances are also good that you never sent the message in the first place. Your e-mail address could have easily been copied by a worm from someone else's address book and used as a "from" address without your knowledge. See daemon and e-mail virus.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2008 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Happy 20th birthday, internet worm!
- Happy 20th birthday, internet worm!Thanks for the history...Thanks for the history, but I don't think I'll be drinking in celebration this Nov. 2nd... I'll be drinking that day to ease the pain of removing all that junk off my computer... lol...Ah, the start of the rot began where?[i]"On November 2nd,...
- Discussion threads 2008-10-31
- Happy 20th birthday, internet worm!
- This weekend marks the 20th anniversary of the Internet Worm, the first major worm that propagated on the Internet. Even though many years have passed and underlying media has changed, worms are still able to wreak havoc and keep system administrators up at night. Today the damage done...
- Blog posts 2008-10-30
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- Blog posts 2008-10-19
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- Daemon Tools Pro is CD & DVD emulation software which allows users to make CD/DVD disc images, create a virtual CD / DVD drives and play CDs & DVDs without the need for the physical disc. It supports more CD / DVD image types than any other CD emulator. It...
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- Software downloads 2008-10-09
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- High-performance bulk email program specially designed for Apple Macintosh computer used to send personalized e-mail messages to a large customer base from a single Mac. It uses Apple Mail as a delivering agent to increase delivery rate. The Import and Export features allow you to share your customer database with...
- Software downloads 2008-10-09
- Mass Mailer for Mac (Tiger) (zip)
- High-performance bulk email program specially designed for Apple Macintosh computer used to send personalized e-mail messages to a large customer base from a single Mac. It uses Apple Mail as a delivering agent to increase delivery rate. The Import and Export features allow you to share your customer database with...
- Software downloads 2008-10-09
- Microsoft's secrecy gameplan tested as more Win7 screenshots leak
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- Discussion threads 2008-09-20
- PwnageTool vs. Apple arms race
- PwnageTool vs. Apple arms raceJailbreak but keep using their software?It seems a strange concept to me. Jailbreaking an iTouch or iPhone means you can use innumerable and usually superior products to manage your hardware. Why go back to using iTunes?On the escalation front, someone needs to explain to...
- Discussion threads 2008-09-12
- Got Debian running, too
- It's not surprising that I managed to get Debian Linux running on the orange iMac I blogged about the other day. Since *buntu is based on Debian, this would seem to be a no-brainer. However, what is of note is the easy text-based install (very similar to Ubuntu's...
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- Do 4 in 5 of us want real health care reform?
- Do 4 in 5 of us want real health care reform?Universal not a good idea . . .Universal health care is not that good of an idea - the taxes can really kill an economy, and there's no guarantee the quality will be any better.We simply need a better idea.Remember...
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- Rapid-Emailer (exe)
- Fast e-mail campaign manager. Anonymous E-mailer with a Built-In SMTP Server. Duplicate address removal, send alternative HTML, and Text formats, allows attachments and embedded images, allows you to put each user info in each email automatically, command Line support. pure header manipulation, very large email list support, overload protection, creates...
- Software downloads 2008-08-08
- Star Event Log Agent Free Suite (exe)
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- Software downloads 2008-08-07
- Email Subscriber Pro (zip)
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- Software downloads 2008-08-01
- Apple finally ships DNS flaw fix, patches 16 other Mac OS X holes
- [ UPDATE: nCircle Andrew Storms reports that the DNS client on the OSX 10.4.11 distribution still has not been patched. ] Apple has shipped a Mac OS X security update with patches for at least 17 documented vulnerabilities, including a fix for the serious DNS...
- Blog posts 2008-07-31
- Star Syslog Daemon Lite Free Suite (exe)
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- Software downloads 2008-07-31
- Dear OEM: Ditch the crapware, you'll make up the revenue elsewhere
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- Discussion threads 2008-07-21
- Protocol handlers cause Mozilla Firefox 3 remote command execution vulnerabilities
- Protocol handlers cause Mozilla Firefox 3 remote command execution vulnerabilitiesThe point is moot......[b]if[/b] you put your FF session in an AppArmor 'sandbox'--the below comes FREE as in beer in openSUSE /etc/apparmor/profiles/extras. Just go into YaST control center->AppArmor->Manually Add Profile and select both usr.lib.firefox.firefox-bin and *.firefox.sh and you are golden--a five-minute...
- Discussion threads 2008-07-16
- Again, why does Microsoft want Yahoo?
- Again, why does Microsoft want Yahoo?Again, why does Microsoft want Yahoo?You should be asking why not? Both companies will gain a lot from this buy out. Yahoo has the services, Microsoft has the brand recognition. They can take the best of both worlds and have a dominant...
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