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Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
MAILX_MCP_URLNoOverride the upstream URL (staging/self-hosting)
preferred_providerNoDefault provider for spf_generate (google, mailgun, sendgrid, postmark, amazon-ses, outlook, zoho, fastmail)
default_dkim_selectorNoDefault selector used by dkim_check when the call omits dkim_selector
dmarc_aggregate_emailNoDefault rua= address for dmarc_generate

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": false
}
prompts
{
  "listChanged": false
}
resources
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
spf_checkA

Check if a domain has a valid SPF (Sender Policy Framework) DNS record. SPF specifies which mail servers are authorized to send email on behalf of a domain.

dkim_checkB

Check if a domain has a valid DKIM (DomainKeys Identified Mail) DNS record for a given selector. DKIM allows the receiver to verify that an email was sent by the domain owner.

dmarc_checkA

Check if a domain has a valid DMARC (Domain-based Message Authentication, Reporting & Conformance) DNS record. DMARC tells receiving servers what to do with emails that fail SPF or DKIM checks.

bimi_checkA

Check if a domain has a valid BIMI (Brand Indicators for Message Identification) DNS record. BIMI allows brands to display their logo next to authenticated emails in supporting email clients.

dmarc_generateA

Generate a DMARC DNS record for a domain. Returns the record name, value, and type ready to be added to DNS.

spf_generateA

Generate an SPF DNS record for a domain based on the email provider being used. Returns the record name, value, and type ready to be added to DNS.

smtp_checkA

Test an SMTP server connection by attempting to connect and authenticate. Optionally sends a test email to verify full sending capability.

imap_checkA

Test an IMAP server connection by attempting to connect and authenticate. Use this to verify email receiving configuration.

smtp_finderA

Look up SMTP server settings (host, port, encryption) for a given email provider. Use this to find the correct SMTP configuration for services like Gmail, Outlook, SendGrid, etc.

imap_finderA

Look up IMAP server settings (host, port, encryption) for a given email provider. Use this to find the correct IMAP configuration for services like Gmail, Outlook, Yahoo, etc.

blacklist_checkA

Check if a domain or IP address is listed in popular email blacklists (DNSBLs). Being blacklisted can severely impact email deliverability.

bimi_hostA

Host and serve your BIMI SVG file for email authentication

mx_lookupA

Look up MX (Mail Exchanger) records for a domain. Returns the mail servers and their priorities.

txt_lookupA

Look up all TXT records for a domain. TXT records contain SPF policies, domain verification tokens, DKIM keys, and other metadata.

cname_lookupA

Look up CNAME (Canonical Name) records for a domain. Shows where a hostname aliases to.

ptr_lookupA

Reverse DNS lookup. Find the hostname associated with an IP address. A valid PTR record is important for email sending reputation.

dns_lookupA

Look up all DNS records for a domain in one query. Returns A, AAAA, CNAME, MX, NS, TXT, and SOA records.

Prompts

Interactive templates invoked by user choice

NameDescription
audit-deliverabilityRun a full deliverability audit on a domain: SPF, DMARC, DKIM, and blacklist checks. Produces a pass/fail summary with copy-pasteable fixes.
setup-dnsGenerate SPF and DMARC DNS records for a domain based on its email provider, with copy-pasteable values ready to add to DNS.

Resources

Contextual data attached and managed by the client

NameDescription
email-deliverability-skillGuide for diagnosing and fixing email deliverability: SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP. Includes audit workflow, DNS setup, and troubleshooting.
email-deliverability-diagnosisDetailed reference for interpreting combined SPF/DKIM/DMARC/blacklist results and mapping failures to fixes per provider.

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