Subject: Warning: could not send message for past 4 hours

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 15 Oct 2008 14:04:33 +0400 (MSD)

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    **      THIS IS A WARNING MESSAGE ONLY      **
    **  YOU DO NOT NEED TO RESEND YOUR MESSAGE  **
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The original message was received at Wed, 15 Oct 2008 07:37:33 +0400 (MSD)
from [218.27.63.210]

   ----- Transcript of session follows -----
<[email-masked]>... Deferred: Connection refused by mail.chem.msu.ru.
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old