Oftentimes it is very helpful to remove your mail server from the equation to see if there is an underlying network / reputation problem blocking mail flow. Here’s how you can manually send a test message using the telnet command built into every operating system. You’ll need to determine the name or address of your [...]
SMTP Diagnostic Tools Updated
August 2, 2010 By
I have added some additional information to the SMTP Diagnostic test tool so that we can better troubleshoot Server Down alerts when customers are puzzled because they saw no outage. I have added the full SMTP transaction transcripts to the SMTP Diag Alert emails. I also configured it to include the actual timeouts for “Timeout [...]
MxWatch Monitor Service Upgrade Announcement
August 2, 2010 By
MxWatch Service Upgrade Announcement In order to keep your Monitoring Service account active you must log in to MxWatch before August 31, 2010. There you can use the migration wizard to move your service over to the new version. Earlier this year we updated the MxToolBox website with a new look, some new tools, and [...]
What does the Bounce Message – “Unable to Relay” Mean?
May 7, 2010 By
If your customers are receiving an error message like below, there are 2 settings that may need to be adjusted. ‘name@domain.com’ on 9/15/2006 11:11 AM 550 5.7.1 Unable to relay for name@domain.com Configure your Exchange Server to accept mail anonymously for your domain The directions below are for Exchange 2007, but most mail servers should [...]
Spam and Virus Trends from Google Postini
April 27, 2010 By
Editor’s note: The spam data cited in this post is drawn from the network of Google email security and archiving services, powered by Postini, which processes more than 3 billion email connections per day in the course of providing email security to more than 50,000 businesses and 18 million business users. In 2009, the security [...]