MX gateway and relay server integration for MailEnable environments

Pitbull integration with MailEnable

In environments using MailEnable, Pitbull integration works on two channels:

• Inbound: DNS MX records point to the Pitbull gateway; Rspamd-based filtering, quarantine and policy engine secure inbound traffic.
• Outbound: Outbound traffic is routed through Pitbull relay via MailEnable Smart Host settings.

Relay Server Configuration

Configure relay server, port 587 and SMTP AUTH credentials under SMTP → Properties → Smart Host in MailEnable Administration Console.

Inbound MX Gateway

• Point domain MX records to the Pitbull gateway address (priority 10)
• Rspamd spam, phishing and malware filtering at the gateway layer
• Malicious attachment scanning via ClamAV / Avast REST
• SPF, DKIM and DMARC checks + score breakdown
• Suspicious messages isolated in quarantine; admin-approved release workflow

Outbound Relay Settings

To route outbound traffic to the Pitbull relay on MailEnable:

MailEnable Administration Console:
SMTP → localhost → Properties → Smart Host
  Smart Host: relay.pitbull.com.tr
  Port: 587
  Requires Authentication: Yes
  Username: smtp-user@domain.com
  Password: ********
  Use SSL/TLS: Yes

This configuration passes outbound traffic through the Pitbull outbound filtering engine. SMTP Abuse Radar, per-tenant rate limits and Emergency Outbound Lockdown are activated.

Authentication

• Add Pitbull include to SPF
• Enable DKIM signing from Pitbull panel and publish DNS TXT record
• Start DMARC at p=none and monitor reports

Operational Visibility

Monitor delivery rates, reject reasons, queue status and GeoIP/ASN distribution on NOC screens. Deliver periodic security summaries to management teams with executive PDF reports.