Archive for June 2010 | Monthly archive page
Obscure Startup Key / General Use Key Combinations Apple systems have always used different key combinations to perform different tasks, just like all computer makers. However, finding those key combinations has always been an arduous task – they don’t come right out and tell you in the manual how to do some of these. This
Here are the steps we took:
5.1.0 500-’Firewall Error’
Issue: Repeated Error: #500 Firewall Error ## -or- #5.0.0 smtp; 5.1.0 – Unknown address error 500-’Firewall Error’ (delivery attempts: 0)> #SMTP#
Cause: The Cisco firewall has a configuration entry like the following (it may have additional parameters specified after in addition to esmtp):
ip inspect name esmtp
This problem occurs because of incompatibilities or restrictions caused by the Cisco firewall configuration. It is more likely to occur if you are sending an email to multiple recipients or using a distribution list in Exchange.
Please Note: If using CCA to apply, re-apply, resety or midify your Cisco firewall, this entry may be re-inserted by CCA and you will have to manually remove.
January 30, 2013
December 17, 2012
December 10, 2012