Intra2net licenses with Mail Security feature:
Acceptance of emails from individual POP accounts, direct delivery via SMTP and from collective POP accounts
Forwarding of entire domains
Forwarding of individual email addresses
Recipient Address Check
Spamfilter with quarantine
Attachment Filter
Email Antivirus
DKIM signing and filtering
Interface for email archiving
Intra2net licenses with mail server additionally support:
Permanent storage of emails on the Intra2net system
Email retrieval using clients (such as Outlook) from the Intra2net system via POP3 and IMAP
Vacation Mode
Email sorting
User-based spam filter
Mailinglists
Webmail and Web-Groupware
ActiveSync