Environment Variables
Every MTE Relay v5 setting with its type, default, and whether a change applies live or at the next restart.
DOMAIN_MAP
The DOMAIN_MAP routing format for MTE Relay v5, with host matching rules, every per domain field, examples, and outbound relay chains.
Discovery
How MTE Relay v5 clients authenticate and read the relay's limits, features, and settings from the discovery document.
Errors and Recovery
MTE Relay v5 error codes 470 to 490, 500, 502, and 503, their reason tokens, and the recovery action a client takes for each.
Keepalive and Timeouts
How MTE Relay v5 keeps idle clients paired with the keepalive endpoint, and every deadline the relay applies.
Limits and Scaling
The MTE Relay v5 request body cap, frame and pair limits, rate limits, codec pools, Kyber strength, and what running more than one replica requires.
CORS and WAF
CORS settings for browser clients, and what a WAF, CDN, load balancer, or proxy in front of MTE Relay v5 must allow.