Powered
by Symantec™ Go4hosting AntiVirus
fully integrates with Imail Server and is powered by Symantec
CarrierScan
™ Server, a high performance, scalable,
reliable solution to protect against viruses. Go4hosting
AntiVirus provides administrators a powerful all-in-one
anti-virus solution that is easy to install and use. Designed to
work exclusively with Go4hosting Server, Go4hosting
Anti-Virus stops dangerous viruses before they make it to an
end-user’s e-mail client.
Fully
Integrated with Go4hosting ServerGo4hosting
AntiVirusGo4hosting Anti-Virus is installed
at the server level and scans e-mail messages as they come into
the server. Once Go4hosting AntiVirus has identified an
e-mail message as potentially having a virus, an administrator
can choose among several options to address the issue:
Serious
Protection
Go4hosting Anti-Virus scans incoming,
out-going and internal messages so users are protected from
virus threats. It detects malicious viruses, worms, and Trojan
horses in all major file types including mobile code and
compressed file formats.
Go4hosting
Anti Spam & Rules Anti Spam
The impact spam has is enormous: it takes time to delete; is a
distraction from reading important email; takes up network
resources to store the email messages and bandwidth to receive,
deliver and bounce messages; and it can be offensive. Our new
anti-spam features include:
Connection Filtering
- Real-time Blackhole Lists (RBL) lists third
party services that include domain names and IP addresses of
known spammers; Comes with 5 free RBL lists by default and
can be configured with additional ones by the administrator
like ORDB or MAPS.
- Verify the MAIL FROM validates that the MAIL FROM
address actually exists.
- Perform Reverse DNS Lookup
verifies the DNS record for
the sending servers IP address.
- Verify the EHLO/HELO domain
validates that the sending
mail server domain exists in DNS.
- Kill Lists (block by domain or email address)
Content Filtering
- Bayesian statistical filters use spam’s
characteristics against itself. Words are analyzed based on
how frequently they appear in good email versus bad email.
Then the message is assigned a probability of being spam.
- Phrase Filtering searches
for phrases in the body of the messages.
- Trusted IP Addresses & White Lists of
trusted e-mail or IP addresses that will allow messages
through, minimizing false positives.
Delivery Rules
New outbound rules
capability helps administrators eliminate obscene language and
stop confidential information from going out. Combination rules
help prevent viruses from entering the network and they
cut down on spam. And you can also reduce spam by disallowing
the creation of subfolders that are often byproducts of spam
Delete and prevent junk e-mail, route important messages based
on headers and contents, and/or stop hostile e-mail viruses
Too much mail all in your Inbox?
Go4hosting's
delivery rules let you sort mail into different mailboxes or
just delete it, based on its headers or contents. Delivery
rules include:
- Scan the message Header (To, From, Sender, Subject) or
the body text
- "Contains" and "Does Not Contain"
logic
- Deliver mail to existing or new mailboxes, or delete it
- Pattern matching with regular expressions for finding
near matches or matching more than one string
- Finding specific file types, such as the .vbs files
associated with the "lovebug" viruses
- Eliminate obscene language
- Stop confidential information from going out and viruses
from spreading
- Provides the ability to limit e-mail usage.
Go4hosting Server has the ability to apply delivery rules
for a particular host or for individual users. For example, you
could create a file of spam-filtering rules and apply it at the
host level, and users could also create their own personal
rules. Here are some examples:
- If FROM doesn't contain "@hotmail.com" move
message to "LowPriority" mailbox
- If SUBJECT contains "get rich quick" delete
message
- if BODY contains "(wsftp|ws_ftp)" move message
to "WS_FTP" mailbox
The anti-virus protection will block all viruses that are
contained within e-mails or attachments. All viruses will be
removed prior to delivery. You will be informed in the e-mail of
the fact that a virus was found and removed. The anti-virus
protection is updated on a daily basis in order to protect you
from known and newly discovered viruses. 
The anti-spam protection uses advanced heuristic rules to
determine whether the e-mail which was sent to you is spam
(unwanted mail) or not. These rules use typical properties of
spam messages such as combination of keywords, the form of the
sender e-mail address, the subject, etc. In addition, each mail
is checked against a global public database of known spam
messages. This database is updated in real time with new spam
mails.