Understanding 500 internal server error

Recently we migrated a clients website from an windows 2003 IIS6 with SQL 2005 backend server to a fresh new Windows 2008 R2 Server with IIS 7.5 with SQL 2008R2. The whole migration was a piece of cake, we handed over the migrated website and all was working well. One...

Unable to send email from plugin WP Mail SMTP

One of the client reported that they are unable to send email using  WP Mail SMTP Plugin while trying to use the in house exchange server as relay on port 25, they were getting the following error ERROR: Failed to connect to server: Connection timed out (110) Error :...