MCP server for email deliverability: validate SPF/DKIM/DMARC/BIMI, check blacklists, test SMTP/IMAP, look up DNS, and generate ready-to-deploy records for any major email provider. Ships with two one-click prompts (audit-deliverability, setup-dns). Public, no auth.
Tools
spf_check
dkim_check
dmarc_check
bimi_check
dmarc_generate
spf_generate
smtp_check
imap_check
smtp_finder
imap_finder
blacklist_check
bimi_host
mx_lookup
txt_lookup
cname_lookup
ptr_lookup
dns_lookup
Server Config
{
"mcpServers": {
"mailx": {
"type": "http",
"url": "https://themailx.com/mcp"
}
}
}