Within the last 2 weeks i have noticed more and more of this error message:
451 4.4.1 timeout writing message to gate1.aheadhq.com.: Broken pipe
I have a Symantec firewall that points all smtp traffic to my Barracuda Spam Firewall, which in turn relays good email to exchange.
Outbound email goes directly out thru the symantec firewall.
Does anyone know what this Broken Pipe error is? or what may be causing it??
I have been googling the hell out of it, and all i can find is sendmail writeups, nothing about exchange or outlook.
Please help, I need some solid advise as to what may be happening here.
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