[+] New version of Web Proxy Checker Pro is able to filter out bad SMTP greetings, that don't contain expected values. That may be useful to detect honeypots. For example, greeting for smtp.live.com should contain "Microsoft" substring. To remove bad (honeypot?) proxies enter string "Microsoft" into "Proxy check fails if response does not contain" option.

[+] Min. proxies. Minimum amount of proxies to start checking.

[+] RBL Check option: Min. RBL positives. Proxy is blacklisted if number of RBL positives equal or exceed this value.

BTW, list of RBL services:

cbl.abuseat.org, dnsbl.invaluement.com, dnsbl.sorbs.net, dul.dnsbl.sorbs.net, smtp.dnsbl.sorbs.net, spam.dnsbl.sorbs.net, zombie.dnsbl.sorbs.net, dnsbl-2.uceprotect.net, pbl.spamhaus.org, xbl.spamhaus.org, bl.spamcannibal.org, ubl.unsubscore.com, combined.njabl.org, dnsbl.ahbl.org, dyna.spamrats.com, spam.spamrats.com, cdl.anti-spam.org.cn, drone.abuse.ch, dul.ru, short.rbl.jp, spamrbl.imp.ch, virbl.bit.nl, dsn.rfc-ignorant.org, spamguard.leadmon.net, netblock.pedantic.org, grey.uribl.com, ix.dnsbl.manitu.net, rbl.efnetrbl.org, blackholes.mail-abuse.org, dnsbl.dronebl.org, db.wpbl.info, query.senderbase.org, bl.spamcop.net, b.barracudacentral.org, ddnsbl.internetdefensesystems.com, http.dnsbl.sorbs.net, misc.dnsbl.sorbs.net, socks.dnsbl.sorbs.net, web.dnsbl.sorbs.net, dnsbl-1.uceprotect.net, dnsbl-3.uceprotect.net, sbl.spamhaus.org, zen.spamhaus.org, psbl.surriel.com, dnsbl.njabl.org, rbl.spamlab.com, ircbl.ahbl.org, noptr.spamrats.com, cbl.anti-spam.org.cn, dnsbl.inps.de, httpbl.abuse.ch, korea.services.net, virus.rbl.jp, wormrbl.imp.ch, rbl.suresupport.com, ips.backscatterer.org, opm.tornevall.org, black.uribl.com, multi.surbl.org, tor.dan.me.uk, relays.mail-abuse.org, rbl-plus.mail-abuse.org, access.redhawk.org, rbl.interserver.net, bogons.cymru.com

That happens because Web Proxy Checker Pro process (wpcp.exe) does not have rights to launch the host process (wpchost.exe).

To avoid this problem you need to change Privilege Level for wpcp.exe - see the screenshot below.

To run 2 instances of Web Proxy Checker you need to create 2 folders for each instance (for ex. C:\WPC1 and C:\WPC2) and copy to these folders 4 files from C:\Program Files\Opt-In Software (I assume that proxy checker was installed to this folder):

wpcp.exe

WPCHost.exe

libeay32.dll

ssleay32.dll

Now you can run 2 instances of proxy checker (wpcp.exe) - first instance from folder C:\WPC1, second instance from folder C:\WPC2.

The problem here is that by default Web Proxy Checker stores application settings to user's Application Data folder. That means that all instances of program will share their settings. To avoid this problem you can use command line argument -appsettingsdir to specify where to save application settings.

SMTP Commands example:


Macroses, used in SMTP Commands:

%PROXY_HOST% - host part of the proxy.
%BASE64_BEGIN% ... %BASE64_END% - the start and the end of the BASE64-encoded block.
%FROM_EMAIL%, %FROM_PASS% - email and password of of the sender ("Check for Delivery"->"FROM Emails").
%TO_EMAIL% - target email ("Check for Delivery"->"TO Emails").
%EMAIL_DATE% - current date in email format.
%SUBJECT% - test subject ("Check for Delivery"->"Test Subjects").
%BODY% - test body ("Check for Delivery"->"Test Bodies").

1. Web Proxy Checker determines the domain names associated with a given IP address (rDNS lookup).

2. Web Proxy Checker determines the list of IP addresses that are associated with domain names, resolved in step 1. rDNS check succeeded if source IP address is present in that list.