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内容垃圾邮件代码：

CODE: 全选

XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X
测试病毒

CODE: 全选

X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
IP信誉查询
http://www.cyren.com/ip-reputation-check.html
http://www.senderbase.org/
https://www.spamhaus.org/lookup/

中继开放查询
https://mxtoolbox.com/diagnostic.aspx

IP分值查询
https://www.senderscore.org/

IP黑名单查询
http://mxtoolbox.com/blacklists.aspx
http://www.blacklistalert.org/
https://whatismyipaddress.com/blacklist-check

OPEN RELAY检测
http://www.dnsgoodies.com/
http://www.mailradar.com/openrelay/

check-auth@verifier.port25.com

梭子鱼黑名单解封
http://www.barracudacentral.org/rbl/removal-request

微软SNDS入站登记
https://postmaster.live.com/snds/data.aspx

趋势反垃圾查询
https://ers.trendmicro.com/reputations/index

飞塔反垃圾黑名单解除
http://www.fortiguard.com/more/antispam

门铁克Symantec
http://ipremoval.sms.symantec.com/lookup/

微软OFFICE360黑名单查询解封
https://sender.office.com 相关连接：http://go.microsoft.com/fwlink/?LinkID=526655

邮件评分检查
http://www.mail-tester.com/

在线生成DKIM（建议选择1024位）
https://www.port25.com/support/domainkeysdkim-wizard/
https://www.socketlabs.com/domainkey-dk ... on-wizard/

SPF在线检查工具
http://www.kitterman.com/spf/validate.html

邮箱是否存在检测
http://verify-email.org/
http://www.verifyemailaddress.org
http://verifyemailaddress.com
http://email-checker.net

邮件MX记录检测
http://www.dbmailserver.com/mx.php

服务器端口检查
http://tool.chinaz.com/port/

ssh secure shell client
http://ultra.pr.erau.edu/~jaffem/classe ... -3.2.9.exe