SentryMail

Features

Unlimited number of virtual mail domains, users, mail lists, aliases, admins.

Web-based Admin Tool

Built-in Global LDAP Address Book

Stores Virtual Mail Accounts in OpenLDAP

All components are free, open source.

Easily view realtime quota usage in admin panel.

AntiSpam / Antivirus

Integration for anti-virus, auto-update virus database.

Quarantining in database, release or delete them with Admin panel.

Spamtrap support.

WhiteList / Blacklist support. Based on IP address, sender address, DNS name, HELO SPF /DKIM /Greylisting

Webmail

Roundcube WebMail

Global LDAP Address Book Support

Vacation Support

Custom Mail Filter

message searching and spell checking.

Threaded message listing

Ajax based Drag & Drop Messages

Contact list import / export feature

Admin Panel

Manage Domains

Manage Users/ Mailists /Alias /Forwarding

Sender/Recipient BCC

Manage Quota

Manage Limits and Rate

Quarantine Release

Log Last Admin operations

Trottling per user and domain

Restrictions

Restrict Sending / Fetching/ Mailfilters / Forwarding via imap, pop, imaps, pops, smtp and smtps Restrict Message size, limit, number and time unit

Security

SSL based Web Access

SSL based pop,imap and smtp

SSL based Admin Panel

Log of all incoming outgoing emails

set bcc of account for monitoring

enable backup user/domain level as needed