I'm trying to troubleshoot a fairly bizarre problem with my mail server.
There are a half-dozen senders whose mail comes in to our Exchange
environment garbled. The mail is broken into ~80-character lines, each
terminated by an equals sign, and includes code like =0D=0A (aka CrLf)
when it reaches my users' Outlook 2003/2007 clients. However, the same
message (we've tested from one sender using multiple recipients) arrives
at yahoo and gmail accounts correctly formatted.
Here's an example (with some confidential data removed but all the line
lengths identical to the original):
content-type: text/plain; charset=us-ascii
content-transfer-encoding: quoted-printable
=0D=0AAccount Number: 1234567 =0D=0AInvestment=
Officer: Frank J Hildebrand CFP CMFC, BH21 =0D=0APhone
Number:=
212-555-5555 =0D=0AManager Name:
Company1=
Large Cap Grwth (ABC012)=0D=0AClient Firm: Acorp
Securities,=
LLC =0D=0A=0D=0ASingle Withdrawal =
=0D=0APlease be advised that the above
referenced=
account has requested a WITHDRAWAL in the amount of
$15,000.=0D=0A=
=0D=0APlease raise sufficient funds to process this request.
=0D=0A=0D=0AComments:=
=0D=0A=0D=0AIf you have any questions or comments, please reply to
this=
email. =0D=0A=0D=0A=0D=0A=0D=0AThe
Managed=
Advisory Consulting Group ("MACG") is a division of MicroStern
Investments=
. . .
It looks like something to do with an old RFC and I do see references to
"folding" in RFC822 and 2822, but they don't mention the equals sign
being a line continuation character. They also don't mention anything
about CrLf having to be explicitly described by the hex ASCII codes. At
first we thought it was a problem with the senders' mail systems but
that doesn't explain why the same message is coming in correctly to my
yahoo account.
Just for kicks I tried telnetting to the mail server and sending a
message like the above, thinking that maybe whatever RFC was in play
here would cause Exchange to reformat for me, but it didn't happen.
Any ideas would be appreciated.
This e-mail, including any attachment(s), is intended solely for use by the
named addressee(s). If you are not the intended recipient, you are not
authorized to disclose, copy, distribute or retain this message, without
written authorization from Jennison Associates LLC ("Jennison"). This e-mail
may contain proprietary, confidential or privileged information. If you have
received this message in error, please notify the sender immediately. If you
have requested Jennison to e-mail any account information to you or your
designee, you are deemed to have consented to electronic delivery of
information from Jennison. E-mail messages are not secure and may contain
computer viruses or other defects, may not be accurately replicated on other
systems, or may be intercepted, deleted or interfered with without the
knowledge of the sender or the intended recipient.
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