Spam is a common cause of IP blacklisting. When numerous spam emails originate from an IP, it gets added to a blacklist. Several factors can lead to such spam emails:

1. Shared Server Issues: On shared servers, multiple users share the same IP address. If any user sends bulk spam emails, the IP can get blacklisted.

2. Compromised Websites: If your website has outdated or poorly written scripts, intruders can exploit these vulnerabilities to gain access and send outgoing spam emails.

3. Viruses or Malware: Malware or viruses on your server or the device you use to access email can also send outgoing spam emails.

Without an outgoing spam filter, there is no mechanism to block these spam emails, which will eventually damage your IP reputation and result in blacklisting.

Key Benefits of MailChannels Outbound Spam Filter

• Improved Email Deliverability and Increased Security

MailChannels Outbound Spam Filter automatically prevents outbound spam, detects compromised email accounts, hacked servers, and exploited WordPress scripts sending spam. It notifies you of compromised users and scripts, allowing you to secure them. This prevents IP blacklisting, improves IP reputation, and ensures your emails reach recipients’ inboxes instead of being marked as spam.

• No More IP Blacklisting or Email Problems

IP blacklists, like Spamhaus, can disrupt reliable email delivery when compromised accounts or applications send spam. MailChannels identifies and scrubs spam from compromised accounts and scripts, notifying you of these events. This prevents IP blacklisting and enhances email deliverability.

• Compromised Account Detection and Notifications

Using sophisticated algorithms and machine learning, MailChannels detects spam-like trends in outgoing email traffic from your servers and applications. It identifies the sending entity and shuts down suspicious email traffic, generating notifications via API webhook or human-readable email. When a spammer is detected, you receive notifications to proactively remove the spammer by disabling a compromised user account or WordPress plugin.

• World-Class Spam and Phishing Detection Technology

MailChannels Outbound Filtering analyzes SMTP traffic through multiple steps to identify the sender, assess message content, and evaluate sender behavior. It applies rate-limiting or blocking policies and groups similar emails for optimized delivery. Responses from email receivers are categorized to identify abuse and improve delivery.

• Advanced Digital Signature Analysis

MailChannels employs digital signature technology, checking email content against a real-time database of spam signatures. A surge in spam messages triggers rate limiting or blocking of the sender.

• Comprehensive Behavior Analysis

MailChannels tracks various statistics about each email sender. It identifies spammers through unusual trends in message volume, suspicious content, and recipient validation failures. Feedback from email receivers helps detect spammers early.

• RBL and IP Reputation Analysis

MailChannels consults external databases, including domain and IP reputation services, to identify emails from known spammers.

• Multi-Password and Multi-User Support

MailChannels supports creating multiple passwords for SMTP authentication. Different passwords can be used for each server, and old passwords can be retired with a click in case of a compromise. Additionally, it allows creating unlimited web console logins for staff, with regular or administrator access levels for appropriate access.

• Detailed Log Search

MailChannels logs every email delivery attempt, allowing you to search through months of logs in seconds via a web interface to quickly resolve email delivery issues.

• User-Friendly Insights

MailChannels provides non-delivery reports (NDRs) with links to an “Insights” page where users can review sent emails, helping them resolve delivery challenges and reducing support workload.

• Easy Cloud-Based Setup and Maintenance

As a cloud-based service, MailChannels Outbound Filtering requires no hardware or software installation. It supports any mail server or email service with SMTP authentication, including Exim, IceWarp, G Suite, Office 365, Open-Xchange, Microsoft Exchange, SmarterMail, SendMail and integrates with hosting panels like WHMCS, cPanel, and Plesk.