Posted by Matthew Palis on Mon, Apr 21, 2008 @ 03:43 PM
We must get 5 customers a day asking us about all these undeliverable messages they are getting that aren't messages they even sent to people. It looks like someone has used your email account to spam someone else and you are getting the undeliverables from it.. scarey! Well it seems scarey but let me shed some light on what is actually happening...the spammers are getting smarter.
Here is what they do in simple terms.
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Find or create a mailbox somewhere on the net that they know will create an undeliverable message when mail is sent to it.
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Create a wonderful spam message and put the email address of the people they want to receive it (LIKE YOURS) in the "FROM" field.
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Send those messages to the mailbox in step 1 above.
So the spammer sends the message from a server somewhere on the Internet (Usually China - Russia - Africa) to a mailbox that will bounce the message back to you because they put your email address in the "FROM" field. Then you get the undeliverable and wonder to yourself "Umm an important message I sent came back undeliverable I better look at it" and you open it to find their spam message they wanted you to get.
Though this seems clever (many other words come to mind as well but I will spare you) it is quite simple and easy for them to do.
Some important points to know:
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They DID NOT hijack your email account to send those messages. They used some other server and spoofed your email address in the "FROM" field of the email so you would get the undeliverable/spam message of theirs.
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Hosted Exchange Providers like us at the moment cannot stop them from doing this.
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It is UNLIKELY that you have a virus sending these out but it is always good practice to run the latest anti-virus software.
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You can set-up separate rules in outlook to handle undeliverable messages in a certain way. Like if you don't want them forwarded to your mobile phone for example.
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Here is a document released by Postini our Spam Filter company on what they are doing to decrease the number of these undeliverable spam messages in your inbox. -
PDF Download
All in all this is another deceptive practice used by spammers to get their junk into our inboxes and render a normally useful tool like undeliverable messages a victim of spammer exploitation.
Posted by Matthew Palis on Mon, Jan 21, 2008 @ 07:30 PM
Simply put hosted exchange is Microsoft's email and collaboration server (Microsoft Exchange) which is designed to work with Outlook. The term hosted means that the exchange server is located at a data center and managed by another company for you. In the past microsoft exchange server was cost prohibitive for small to medium sized businesses to use as an email and collaboration tool because of the high cost of hardware, software and technical staff to manage it.
Now Microsoft has partnered with service providers allowing anyone the ability to use microsoft exchange for a low per user per month fee and avoid all the upfront and ongoing maintenance costs of an in-house server which are typically thousands of dollars per year even for a small 5 person company. Hosted Exchange providers typically charge between $9.95 and $24.95 per user per month depending on the number of mailboxes your company commits to and the diskspace you require for each mailbox.
Now your business can have the email and collaboration power of Microsoft Exchange Server with no management and cost of hardware, software, back-ups or even technical support to your users. Hosted Exchange providers give you a far superior solution at a fraction of the cost.