At Goodreads you cannot follow books: Who rates the good books and what else do they read? This service sends you an email with the latest ratings for selected books.
check a domain's SPF (Sender Policy Framework) record, löst includes gleich mit auf | include:_spf.example.com = TXT-DNS-record von _spf-subdomain (dig ... txt) | SPF-Test mit gutem Log (redirect...) http://vamsoft.com/support/tools/spf-policy-tester
Blogtrottr delivers updates from all of your favourite news, feeds, and blogs directly to your email inbox, Free realtime RSS and Atom feed to email service.
"...an open source software application designed to significantly reduce the amount of spam (Internet junk-mail) you receive." whitelists, blacklists, challenge/response, tagged addresses, ...
Ever wanted to get rid of Outlook ? DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client (e.g. Thunderbird with Lightning or Apple iCal) with an Exchange server, even from the internet or behind a firewall through Outlook Web Access. DavMail now includes an LDAP gateway to Exchange global address book and user personal contacts to allow recipient address completion in mail compose window and full calendar support with attendees free/busy display.
Boxbe is a socially-powered email screening service that reduces email overload and prioritizes your email. Boxbe helps ensure email from friends is always delivered with priority.
Roundcube webmail...
...is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.