Free SPF & DMARC DNS Record Generator + Linux chmod Permission Calculator

Build custom SPF and DMARC DNS records to stop your domain emails from landing in spam, inspect any domain’s live email authentication records, or calculate Linux and cPanel chmod file permissions (`755`, `644`, `600`) visually.

How SPF, DMARC & File Permissions Protect Your Site

• Fix WordPress Email Deliverability: Gmail and Yahoo require valid SPF and DMARC records for custom domain senders. Read our complete WordPress Not Sending Emails & Free SMTP Setup Guide.
• Fix 403 Forbidden Errors in cPanel: Ensure all WordPress directories use 755 and PHP/HTML files use 644. See our tutorial on Fixing 403 Forbidden & File Permission Errors.