ARC-Relay
DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"mcp": {
"url": "https://arc-relay.com/mcp"
}
}
}Remote endpoints
https://arc-relay.com/mcpstreamable-httpWhat it can do
Tool inventory
Tools (6)
🟢check_dmarc(domain)
Check a domain's DMARC, SPF, and MX records. Use this to diagnose email authentication issues.
Input Schema
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name to check (e.g. example.com)"
}
},
"required": [
"domain"
]
}🟢check_email_health(domain)
Get a 0-100 email health score for any domain. Checks DMARC, SPF, MX, and DKIM records and returns a letter grade (A+ to F) with actionable recommendations. Use this to audit any domain's email security posture.
Input Schema
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name to score (e.g. example.com)"
}
},
"required": [
"domain"
]
}🟢check_health
Check ARC-Relay service health and uptime.
Input Schema
{
"type": "object",
"properties": {}
}🟢check_spf(domain)
Validate a domain's SPF record. Shows mechanisms, DNS lookup count, and warns if over the 10-lookup limit.
Input Schema
{
"type": "object",
"properties": {
"domain": {
"type": "string",
"description": "Domain name to validate (e.g. example.com)"
}
},
"required": [
"domain"
]
}🟢network_leaderboard(region, limit)
View top relay nodes ranked by reputation score. Filter by region.
Input Schema
{
"type": "object",
"properties": {
"region": {
"type": "string",
"description": "Filter by region (e.g. us-west, eu-central)"
},
"limit": {
"type": "number",
"description": "Max results (1-100, default 25)"
}
}
}🟢network_stats
Get public relay network statistics — total nodes, active nodes, messages routed, delivery rate, DMARC pass rate.
Input Schema
{
"type": "object",
"properties": {}
}Community
Evidence