装好系统后，如何评估系统的发垃圾和病毒能力？总不能自己给自己发">垃圾邮件和病毒邮件吧。
http://www.gfi.com/emailsecuritytest/
Is your email system secure against email viruses and attacks?
The most deadly viruses, able to cripple your email system and corporate network in minutes, are being distributed worldwide via email in a matter of hours (for example, the LoveLetter virus). Email worms and viruses can reach your system and infect your users through harmful attachments. But that's not all! Some viruses are transmitted through harmless-looking email messages and can run automatically without the need for user intervention (like the Nimda virus). Are you covered against such threats?
Find out now by doing a vulnerability check on your email system!
Sign up to test for these real world threats by entering your name and email address below. You will receive an email asking you to confirm your request by clicking on a URL, after which we will perform a vulnerability check of your email system. You will receive the results by email.
For an in-depth explanation of these vulnerabilities and why anti-virus is not enough, check out our white papers, Protecting your network against email threats, "One virus engine is not enough: The case for maximizing network protection with multiple anti-virus scanners" and Why You Need an Email Exploit Detection Engine. To protect once and for all against current and future threats, consider GFI MailSecurity.
我们可以通过GFI来测试我们邮件系统的发垃圾和病毒能力。
当你的邮箱验证通过后，他会发送垃圾邮件和病毒邮件到你的邮箱，你就可以检测到邮件系统的反垃圾和病毒查杀能力。
http://www.antispam-ufrj.pads.ufrj.br/
The ANTISPAM-UFRJ is a realtime database with the mission to supply the Mail Transport Agents (MTA) of the hosts in the PADS and in others networks with the most recent information about open-relay hosts, spammers hosts or dialup machines on the Internet.
It was inspired in the two famous realtime databases, the MAPS and the ORBS, now it is a composition of both because it supports a realtime database style RBL and an open-relay database style ORBS (95%, we think).
As our primary mission, we want to promote a way to help the Internet users to prevent them from the hiddeous spammers activies. Unfortunatelly, like MAPS e ORBS, we believe that we aren't universally loved and we are sorry for, but respect, the people who don't like our philosophy.
测试邮件服务器是否被设成公开转发站
http://www.abuse.net/relay.html
We offer an experimental mail relay testing service. It runs in two modes:
Anonymous mode sends commands to the server to be tested but doesn't actually send any mail. This can report false positives, hosts that appear to be open relays but actually aren't because they reject or discard a message after appearing to accept it.
Registered user mode attempts to relay a message through the server to be tested. You must be a registered abuse.net user, and the relayed message will be addressed to you. If you're testing a server that accepts mail for your e-mail address, abuse.net can generate a temporary alias in the abuse.net domain that will be forwarded to you.
To limit the likelihood of abuse, the relay tester limits the number of tests a single user can make to ten per hour. If an IP address has been tested recently, it will report the results of that test, rather than retesting. If a network owner asks that we refrain from testing, we won't test any address on that network at all.
All tests are logged, of course.
If you are a registered user, you have to identify yourself with your e-mail address and the registration password that abuse.net sent in the subject line of your welcome message. If you're not a registered user but would like to register, send e-mail to new@abuse.net and respond to the welcome message it sends.