>Watching /var/log/maillog I see everytime a message comes to 
>[EMAIL PROTECTED] with relay 127.0.0.1 there is an error:  'reject=451 
>4.7.1 Please try again later' and MIMEDeFang times out.  What causes 
>this and how do I fix it?

Check your maillog (/var/log/maillog in my case on FreeBSD) I get them now and then, 
mostly it means MD has crashed. Stopping it and sendmail, waiting a minute and 
restarting them generally solves the problem. Not quiet sure what causes the crash, 
but it's not very often on my box. Generally seems to happen when some ^#%#% tries to 
deliver a spam that may have very screwed up headers. Haven't been able to intercept 
one of those though...

Hope this helps


Paul

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