nanog mailing list archives

RE: What is "The Internet" TCP/IP or UNIX-to-UNIX ?


From: "Joe" <jbfixurpc () gmail com>
Date: Mon, 5 Apr 2010 12:21:21 -0400


        I think its generally agreed that FTP is used for file transfers,
but unfortunately the option exists to attach files within an email thanks
in part to MS/AOL/Compuserve and numerous others long ago. I believe its due
in part to ease of use for those that aren't technically inclined to know
better, and make things "easier" for them (harder on others). 

Kind of like cattle, if you leave a hole (or make a hole) in the fence
eventually it will be used and the only thing you can do is build a fence
outside of the hole to keep the heard from getting to far.

-Joe

-----Original Message-----
From: Michael Sokolov [mailto:msokolov () ivan Harhan ORG] 
Sent: Monday, April 05, 2010 11:22 AM
To: nanog () nanog org
Subject: Re: What is "The Internet" TCP/IP or UNIX-to-UNIX ?


Jim Mercer <jim () reptiles org> wrote:

if the script determined an email was > X bytes (100k?), 
the message 
body was rewritten with:

"Contents removed at LSUC, email is not a file transport protocol." 
and the mail was left to continue on its path.

i kinda feel like adding the same script back into my servers.

I have my Sendmail configured to cut off anything past 256 KB 
in the collect phase.  At first I had it configured to reject 
the whole message (close the SMTP connection while the junk 
is still spewing), but people started assuming that my E-mail 
address was bad instead of realizing that they were sending 
oversize junk, so I've changed it to cut off and discard the 
excess fat, but still let the first 256 KB through so I at 
least see that someone tried to send me something.

Files are meant to be FTPed, not E-mailed.  If someone is too 
stupid to use a real command line FTP client to upload a file 
to my FTP drop box, I make them use www.yousendit.com.

MS




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