When downloading via POP3 on Exchange 2003 server, weird characters appear

Posted on 2007-10-15
Last Modified: 2013-11-29
Hi All:

I have been told to look at my exchange server recently, as a user of mine who is downloading emails via POP3 seems to be getting weird charaters. To be precise:

What was written in original email: "Shelly's program" .. what's being outputted via POP3: "Shelly&#! ! 39;s program"

Also, randomly "! !" is appearing all over the emails downloaded via POP3.

Mind you these characters are NOT showing up when downloaded via IMAP or other protocols... Only POP3. does anyone have a suggestion on where to hunt?
Question by:vtois
    LVL 39

    Expert Comment

    What is the client software?

    Author Comment

    Umm... it's via a 3rd party API dll they are downloading it from.
    LVL 39

    Expert Comment

    Personally, I would be looking at the client - as a test, try using something like outlook express and see if it has the same problems.

    Ideally, you would not be using POP3 at all, but I doubt that is an option.

    Accepted Solution

    Turns out this was a "weird" one... the way we are receiving emails here on our site is via several relays. One stop is our Solaris MTA that does grey-listing... Apparently part of the code used to do grey-listing strips out all white space, so the following servers in turn treat it as if it is following RFC standards and insert the "! !" where they HAS to be a space/EoL/etc etc.

    A lot of investigative time wasted on this...  *sigh*
    LVL 25

    Expert Comment

    Points refunded.  I can't see greylisting doing anything like that, but as long as it works I suppose...

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