Answer
PROBLEM
Spam Definitions are not updating correctly due to firewall restrictions.
ENVIRONMENT
- GFI MailEssentials
- All Supported Environments
SOLUTION
All MailEssentials updates are downloaded over HTTP (Port 80).
The connections are made to the following addresses:
- 'http://update.gfi.com'
- 'http://cdnupdate.gfi.com'
- 'http://update.gfisoftware.com'
- 'http://*.mailshell.net'
- Mailshell IP addresses
NOTES:
- All auto-update functionality (such as SpamRazer, Bayesian, etc) in GFI MailEssentials runs over HTTP which can pass through the proxy server configured in the GFI MailEssentials configuration. You must ensure that you configure your firewall to allow connections from the GFI MailEssentials server to connect to your proxy server.
- Antiphishing and Bayesian updates are downloaded from 'http://update.gfi.com' or 'http://update.gfisoftware.com' depending on your MailEssentials configuration.
- Spamrazer updates are downloaded by directly connecting to the IP address of one of the update server and not a hostname - therefore Port 80 outbound must be opened
- Below is a full list of servers (IP addresses and hostnames) to which sn92.mailshell.net may redirect:
217.174.249.167 fh-uk03.mailshell.net
217.174.248.233 fh-uk04.mailshell.net
217.174.249.223 fh-uk05.mailshell.net
217.174.249.232 fh-uk06.mailshell.net
77.68.39.21 fh-uk07.mailshell.net
77.68.39.31 fh-uk08.mailshell.net
88.208.202.90 fh-uk09.mailshell.net
88.208.202.91 fh-uk10.mailshell.net
213.171.206.148 fh-uk11.mailshell.net
213.171.207.47 fh-uk12.mailshell.net
213.171.205.141 fh-uk13.mailshell.net
213.171.207.48 fh-uk14.mailshell.net
88.208.248.146 fh-uk15.mailshell.net
88.208.248.199 fh-uk16.mailshell.net
88.208.248.164 fh-uk17.mailshell.net
88.208.248.200 fh-uk18.mailshell.net
213.171.205.77 fh-uk19.mailshell.net
213.171.207.62 fh-uk20.mailshell.net
213.171.205.238 fh-uk21.mailshell.net
213.171.207.72 fh-uk22.mailshell.net
213.171.205.78 fh-uk23.mailshell.net
213.171.207.71 fh-uk24.mailshell.net
109.123.106.250 uk2-01.mailshell.net
109.123.106.251 uk2-02.mailshell.net
109.123.106.252 uk2-03.mailshell.net
109.123.106.253 uk2-04.mailshell.net
77.92.86.115 uk2-05.mailshell.net
77.92.86.116 uk2-06.mailshell.net
77.92.86.163 uk2-07.mailshell.net
74.208.97.139 u15278557.mailshell.net
87.106.251.72 s15410570.mailshell.net
74.208.97.105 u15278525.mailshell.net
74.208.97.46 u15278466.mailshell.net
CAUSE
Spam Definitions are not updating correctly due to firewall blocking ports.