Email Marketing: Before starting a new campaign we need to make sure our email passes SPAM Filter tests

We need to cover all major spam filters at ISPs and webmail providers, as well as corporate filters.

Server-side filters

Barracuda
MessageLabs
Postini
SpamAssassin

Sender verification

DKIM
DomainKeys
Sender ID
SPF

ISP filters

Fastmail
Gmail
GMX
Hushmail
Lycos
Mail.com
Mobile Me
Yahoo! Mail