Deliverability
SPF, DKIM and DMARC for Cold Email
A practical explanation of the three core email authentication mechanisms and how they work together.
Unlimited · runs in your browser
DMARC Generator
Build a valid DMARC TXT record in your browser and copy it to DNS.
Choosing a policy
none only collects reports. Use it first to confirm every service that sends as your domain passes SPF or DKIM.
quarantine asks receivers to treat failing mail as suspicious; reject asks them to refuse it. Use a lower percentage to phase a stricter policy in gradually.
This generator runs entirely in your browser. Nothing is sent to MailQV.
Error code guides
Common errors and how to fix them
- DMARC record missing (DMARC_MISSING)
- Multiple DMARC records (MULTIPLE_DMARC_RECORDS)
- Invalid DMARC policy (INVALID_POLICY)
Resources
Related guides
Quick reads to help you plan audiences, sending volume, sequences and measurement before launch.
Provider guides
Zoho Mail SMTP and IMAP Settings for Cold Email
Zoho Mail server settings for connecting a mailbox over SMTP/IMAP, plus what Zoho’s published sending policy means for cold outreach.
Provider guides
Yandex Mail SMTP and IMAP Settings for Cold Email
Yandex Mail server settings for connecting a mailbox over SMTP/IMAP, app passwords, and Yandex’s published recipient limits.
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