Email problems handled
Email outages can come from bad MX records, expired DNS, failed authentication, queue backups, blacklists, server misconfiguration, mailbox storage, or a hosting migration that missed hidden details.
- MX, SPF, DKIM, DMARC, PTR, and DNS validation
- Exim and Dovecot troubleshooting on cPanel and Linux servers
- Mail queue review, bounced message analysis, and routing repair
- Blacklist, spam filtering, and deliverability triage
- Migration cleanup after mailboxes or DNS moved incorrectly
How the repair works
We test inbound and outbound flow, review DNS and authentication, inspect server logs when available, and separate provider-side problems from domain configuration issues. You get a clear explanation of what failed and what changed.
Lakewood, Denver metro, Colorado, and remote
Based in Lakewood, Colorado, Cyber Duct Tape supports local businesses and remote clients that need practical email repair without vendor finger-pointing.