KCTC Online Support for E-mail Services
Auto-Generated
Messages
Background
An "Auto-Generated message" is an e-mail message that
is automatically created and sent by a computer when a certain event has occurred.
These messages are intended to deliver information about something that has happened
that would otherwise go unnoticed. Because these messages are created and mailed
by a computer, you will not receive a response if you reply to them. Instead,
send an e-mail to support@kctc.net with
any questions regarding the contents of the message you have received.
Listed below are some common KCTC auto-generated messages along with explanations
of their content and recommenced actions to be taken.
Common KCTC Auto-Generated Messages
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A message sent to
you was scanned for potentially harmful content.
Summary
You will receive this message when someone tries to send a message
to you with an attachment that has a filename that ends with one of the following
(known as an extension): .BAT, .COM, .CMD, .EXE, .HTA, .LNK, .PIF, .SCR, .SHS,
.VB, .{. KCTC blocks all files with these extensions as they are common to the
spreading of computer viruses.
Example
The contents of the auto-generated message will look like the
following:
-------------------------------------------------
This is an auto-generated message from an
unattended e-mail box at KCTC.
A message sent to you by johndoe@internet.com
was scanned for a potentially harmful attachment.
Please read below for more details.
The suspicious attachment has been removed
from the original message. The cleaned message
is attached in this message.
Scan report:
File 'somefile.exe' has a forbidden name
Notice! It's possible that the sender's e-mail
address was spoofed. Please ignore and delete
this message if you were NOT expecting an e-mail
with an attachment from:
johndoe@internet.com
Contact the KCTC Postmaster for more information.
Thank you,
KCTC POSTMASTER
-------------------------------------------------
The first paragraph explains that this is an auto-generated
message and that you will not receive a response if you reply to it.
The second paragraph explains that a message was sent to you from johndoe@kctc.net
and contained an attachment with a forbidden extension.
The third paragraph explains that the attachment with the forbidden extension
was removed from the original message and the original message was then added
as an attachment to this auto-generated message. Opening the attachment will display
the original message, minus the original attachment.
The fourth paragraph lists the offending attachments and states why they were
removed. In this example, somefile.exe contained the forbidden extension of .EXE.
The fifth paragraph explains that the sender's address may be forged in an attempt
to conceal the real source of the message (a technique used by spamers and viruses
know as spoofing) and advises that if you were not expecting an e-mail with an
attachment from johndoe@internet.com that you may discard it.
The sixth paragraph asks that if you have any questions concerning the message
that you contact KCTC for more information.
Recommended Action
If you were not expecting an attachment from the address stated
in the auto-generated message, discard the message. Many viruses spread by randomly
e-mailing themselves to other people, and some may even appear to be coming from
someone you know when in fact that information may have been forged (also known
as spoofing).
If you were expecting a message with an attachment from the address stated in
the auto-generated message, make sure the attachment's file name does not end
with a forbidden extension: BAT, COM, CMD, EXE, HTA, LNK, PIF, SCR, SHS, VB. If
it does, ask the sender to "zip" the attachment and re-send it. Once
you have received the message you can "unzip" the attachment using the
appropriate software.
You sent a message that contained
a potential virus.
Summary
You have tried to send a message that has been infected with
a virus.
Example
The contents of the auto-generated message will look like the
following:
-------------------------------------------------
This is an auto-generated message from an
unattended e-mail box at KCTC.
You sent a message that contained a potential
virus. Please read below for more details.
Original message recipient(s):
someone@somewhere.com
Scan report:
Virus 'MyDoom.A@mm' in document.zip
According to the anti-virus server at KCTC.net
your PC is infected with a virus or worm. Please
take the necessary steps to remove this virus or
worm from your PC before sending your message
again. PLEASE NOTE: THE ORIGINAL MESSAGE
RECIPIENT(S) WILL NOT RECEIVE MAIL FROM YOU UNTIL
YOUR PC IS FREE FROM VIRUSES.
Notice! It's possible that your e-mail address
was spoofed. Please ignore and delete this
message if you never sent an e-mail to:
someone@somewhere.com
Thank you,
KCTC POSTMASTER
-------------------------------------------------
The first paragraph explains that this is an auto-generated
message and that you will not receive a response if you reply to it.
The second paragraph explains that a message sent from your e-mail address may
have contained a virus.
The third paragraph lists the addresses to which this message was intended to
be delivered to.
The fourth paragraph lists the offending attachments and states why they were
removed. In this example, document.zip was infected with the MyDoom virus.
The fifth paragraph explains that your computer may be infected with a virus and
advises that you take steps to remove any viruses that may be on your computer.
It then explains that the intended recipients of the original message did not
receive some or all of the original message. As long as there is a virus on you
computer, there is a possibility that your mail will continue to be blocked for
similar reasons.
The sixth paragraph advises that if you did not send an e-mail message to someone@somewhere.com
that you may discard this message. It is possible that your address may have been
forged in an attempt to conceal the real source of the message (a technique used
by spamers and viruses know as spoofing) and for this reason a notice was returned
to you.
Recommenced Action
If you did not send a message to the address stated in the auto-generated
message, discard the message. Many viruses spread by randomly e-mailing themselves
to other people, and by using a false source address (also known as spoofing).
If you did send a message to the address listed in the auto-generated message
then your computer may be infected with a virus. If you have virus-scan software
on your computer, make sure it is up to date, and scan your computer before re-sending
your message.
You sent a message that contained
a potentially harmful attachment.
Summary
You will receive this message if you have tried to send a message
to someone with an attachment that has a filename that ends with one of the following
(known as an extension): .BAT, .COM, .CMD, .EXE, .HTA, .LNK, .PIF, .SCR, .SHS,
.VB, .{. KCTC blocks all files with these extensions as they are common to the
spreading of computer viruses.
Example
The contents of the auto-generated message will look like the
following:
-------------------------------------------------
This is an auto-generated message from an
unattended e-mail box.
You sent a message that contained a potentially
harmful attachment. Please read below for more
details.
Original message recipient(s):
janedoe@internet.com
Scan report:
File 'somefile.exe' has a forbidden name
According to the e-mail server at KCTC.net you
tried to send an e-mail with a forbidden
attachment. PLEASE NOTE: THE ORIGINAL MESSAGE
RECIPIENT(S) DID NOT RECEIVE YOUR MESSAGE. Please
take the necessary steps to compress (.ZIP) this
file before sending your message again.
Notice! It's possible that your e-mail address
was spoofed. Please ignore and delete this
message if you never sent an e-mail to:
janedoe@internet.com
Thank you,
KCTC POSTMASTER
-------------------------------------------------
The first paragraph explains that this is an auto-generated
message and that you will not receive a response if you reply to it.
The second paragraph explains that a message was sent from your e-mail address
with an attachment that has a forbidden extension.
The third paragraph lists the addresses to which this message was intended to
be delivered to.
The fourth paragraph lists the offending attachments and states why they were
removed. In this example, somefile.exe contained the forbidden extension of .EXE.
The fifth paragraph explains that the intended recipients of the original message
did not receive some or all of the original message. It also advises that if you
were attempting to send a message with an attachment that has a forbidden extension
to "zip" the file with appropriate software before re-sending.
The sixth paragraph advises that if you did not send an e-mail message with an
attachment to janedoe@internet.com that you may discard this message. It is possible
that your address may have been forged in an attempt to conceal the real source
of the message (a technique used by spamers and viruses know as spoofing) and
for this reason a notice was returned to you.
Recommenced Action
If you did not send an attachment to the address stated in the
auto-generated message, discard the message. Many viruses spread by randomly e-mailing
themselves to other people, and by using a false source address (also known as
spoofing). If you have virus-scan software on your computer, make sure it is up
to date, and scan your computer with it.
If you did send a message with an attachment to the address stated in the auto-generated
message, make sure the attachment's file name does not end with a forbidden extension:
.BAT, .COM, .CMD, .EXE, .HTA, .LNK, .PIF, .SCR, .SHS, .VB, .{. If it does, "zip"
the file and re-send it. Once the recipient has received the message they can
"unzip" the attachment using the appropriate software.
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