We wanted to give a bit more insight into the Warning from our SMTP Diagnostic tool about ‘Reverse DNS does not match SMTP Banner’. The short answer is that the reverse IP address name is not contained in the server HELO or EHLO banner. In the example below, the string “someotherdomain.com” is not found anywhere [...]
What does the Warning – Reverse DNS does not match SMTP Banner mean? – SMTP Diagnostic Tool
March 22, 2010 By
Reverse DNS FAILED! This is a problem.
December 4, 2009 By
When a sending server makes a connection to the recipient server, the recipient server notes the sending IP address and performs a reverse lookup. This is done by sending a DNS query which returns a Fully Qualified Domain Name ( FQDN) registered for that IP address. If the sending SMTP address matches the domain, then [...]
Configuring iCal to sync with Google Apps using CalDAV
July 22, 2009 By
The critical piece of missing information was how to build the CalDAV server address for the all the calendars you have set up in Google Apps. It is important to remember that all of the sharing and setting of permissions for calendars is controlled by the web interface. You will need to go into the settings panel for each calendar to find the Calendar ID for each calendar you wish to add.
The CalDAV address for your primary calendar is always https://www.google.com/calendar/dav/YOUREMAIL@DOMAIN.COM/user where your Google Apps account replaces YOUREMAIL@DOMAIN.COM. On the settings page of each of your calendars there is a section labeled Calendar Adress. To the right of the XML ICAL and HTML buttons you will see the Calendar ID. The CalDAV server address you will use when configuring iCal to sync with the Google Apps servers is https://www.google.com/calendar/dav/{CalendarID}/user.
It would be nice if Outlook could consume CalDAV natively like iCal which would make working with multiple Google Calendars as easy as this in Windows.
Detailed step-by-step instructions are in the full version of this blog post below.
How to Get Email Headers – A Guide from MxToolBox
May 18, 2009 By
When reporting spam that slips past the filters, it is essential that we receive the full message headers from a message. Additionally, sometimes our Support department may request the full headers from an email message in order to troubleshoot mail delivery problems. Every single Internet e-mail message is made up of two parts the header [...]