About SMTP relays
- Ensure near 100% deliverability to all major providers and ESPs through Mailcheap's multi-relay system which resends hard rejects.
- Powerful anti-spam and anti-virus outbound filtering to maintain IP reputation.
- Easy to setup: Relay your mailservers via smarthost configuration or use policy-based routing (PBR) to protect entire networks. The solution is compatible with all modern MTAs like Exim (cPanel, Plesk, DirectAdmin), Postfix (Zimbra, iRedmail), Microsoft Exchage, Sendmail, qmail, etc.
- Easy to manage: Web based panel to authorize mailservers/netblocks, block users/domains, configure spam filter settings & rate-limiting, manage quarantined emails, view log/log analysis, manage mail signing tools (SPF, DKIM, DMARC) and view realtime health metrics for both filter & relay.