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Guides

Fix the problem you have, or set up your mail provider properly.

Fix a problem

Why your emails go to spam
SPF: too many DNS lookups
Gmail and Yahoo sender requirements

Set up your provider

Google Workspace: SPF, DKIM and DMARC setup
Microsoft 365: SPF, DKIM and DMARC setup
Zoho Mail: SPF, DKIM and DMARC setup
SendGrid: SPF, DKIM and DMARC setup
Mailgun: SPF, DKIM and DMARC setup
Amazon SES: SPF, DKIM and DMARC setup

VerifyPulseChecks whether email will arrive: the address, the domain, and the records behind it.

ToolsSender Guard DNS inspector Email check Email header analyzer DMARC report analyzer

CheckersSPF checker DMARC checker DKIM checker MX lookup

Fix a problemEmails going to spam SPF: too many DNS lookups Gmail and Yahoo sender rules All guides Fix Kit Pricing

Setup guidesGoogle Workspace Microsoft 365 Zoho Mail SendGrid Mailgun Amazon SES

For developersAPI and agents llms.txt x402 endpoints API reference Monitoring script

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