Top Ten features an Antispam must have
1 ESP (Eliminate Spam at Protocol level):
A antispam should have ESP technology to build an unbreakable, fool-proof privacy layer around your mailbox.
2.Directory Harvest Prevention :
This feature tracks email spammers with invalid emails and count them automatically and
it stops the response for that particular IP address immediately.
3.Email Traffic Control (Rate limit) :
A antispam must have this feature which not only controls email traffic but also limits the Maximum number of simultaneous sessions allowed from each unique IP and Senders email id.
4.Virus Protection:
An antivirus product should have a antivirus engine which should detect viruses, worms and Trojans, including Microsoft Office macro viruses, mobile malware, and other threats. built-in support for various archive formats, including Zip, RAR, Tar, Gzip, Bzip2, OLE2,Cabinet, CHM, BinHex, SIS and others .
5.Content Analysis:
This special feature will declare an email as a spam on the bases of score, phrase and special links.
6.SPF: Senders Policy Framework:
A antispam must have SPF which has inbuilt e-mail authentication protocol that verifies the origin of the e-mail and prevents forged mail from entering an organization.
7.SMTP Auth: Authenticate before SMTP:
SMTP-AUTH extends SMTP to include an authentication step through which the client
(Outlook / thunderbird) effectively logs in to the mail server during the process of sending mail. Servers which support SMTP-AUTH can usually be configured to require clients to use this extension, ensuring the true identity of the sender is known.
8.Reverse DNS , MX /A record check :
A antispam should be capable to check whether the sender domain has a valid DNS record having A or MX entry, and in case it does not have, it should be blocked. This setting may be configured by administrator and can be applied for the entire domain configured on the server.
9.Challenge-Response :
With this unique feature senders can validate themselves with a couple of clicks and keystrokes. This works transparently to the recipient, and cannot be performed by spam engines.
10.JMail Accounts :
The JMail sub-system is another unique, revolutionary and thoughtful feature of ESP.
It allows custom JMail accounts to be created as programmable extensions to your mail account, and rules to be assigned to each such account. You can then invite trusted senders into your mailbox without compromising your privacy. Even if a trusted sender’s computer is hacked, or address book data (including your JMail id) is stolen, the JMail account is not accessible to anyone else without your permission. And the JMail accounts can be configured by you in a variety of ways to support common usage scenarios – newsletter subscription and online shopping are just two examples.
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