Feature Lite Basic Standard Enterprise
Inbound filtering
Inbound filtering service ✓ ✓ ✓ ✓
Included inbound emails 25,000 50,000 100,000 200,000
Inbound message size limit 50 MB 100 MB 200 MB 400 MB
Outbound SMTP
Outbound SMTP service — — ✓ ✓
Outbound relays included — — 5,000 10,000
Outbound message size limit — — 50 MB 50 MB
SMTP relay / smart host — — ✓ ✓
Domains & addresses
Domain-based pricing ✓ ✓ ✓ ✓
Unlimited email addresses ✓ ✓ ✓ ✓
Unlimited domain aliases — ✓ ✓ ✓
Security & filtering features
Spam, virus, and malware filtering ✓ ✓ ✓ ✓
Over 22 million filter rules ✓ ✓ ✓ ✓
Tracking 100+ million senders ✓ ✓ ✓ ✓
Domain-wide filtering policies ✓ ✓ ✓ ✓
Custom domain-level filter rules ✓ ✓ ✓ ✓
Geographic policy filters ✓ ✓ ✓ ✓
Attachment “type” filters ✓ ✓ ✓ ✓
Microsoft Office macro filter ✓ ✓ ✓ ✓
Fail-safe design ✓ ✓ ✓ ✓
Archiving & continuity
Email archiving 7 days 15 days 30 days 30 days
Mail bagging (5 days) ✓ ✓ ✓ ✓
Distributed cloud-based setup ✓ ✓ ✓ ✓
Destination fail-over MX support — — ✓ ✓
Monitoring
Remote monitoring systems ✓ ✓ ✓ ✓
Mail host monitoring — — — ✓
Quarantine
Quarantine message research tool ✓ ✓ ✓ ✓
Domain-wide shared quarantine ✓ ✓ ✓ ✓
Individual quarantines $1.75/user $1.75/user $1.75/user Unlimited
Automatic quarantine provisioning — — — ✓
Directory sync
Active Directory / LDAP sync — ✓ ✓ ✓
Advanced features
Dashboard with statistics ✓ ✓ ✓ ✓
Valid email address list ✓ ✓ ✓ ✓
Approved senders list (whitelisting) ✓ ✓ ✓ ✓
Blocked senders list (blacklisting) ✓ ✓ ✓ ✓
Active Directory / LDAP sync — ✓ ✓ ✓
Domain alias setup — ✓ ✓ ✓
Custom email address forwarding ✓ ✓ ✓ ✓
Catch-all address ✓ ✓ ✓ ✓
Basic encryption using TLS ✓ ✓ ✓ ✓
Email address tagging ✓ ✓ ✓ ✓
Multi-factor authentication ✓ ✓ ✓ ✓
Automatic quarantine provisioning — — — ✓
Extras & protections
Overage billing spike protection ✓ ✓ ✓ ✓
30 day trial period ✓ ✓ ✓ ✓

 

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