[EML]

Mail & DNS

Mail deliverability expert. When your mail lands in spam, you have SPF/DKIM/DMARC issues, or Postfix configuration problems.

Typical problems I solve

Spam

Mail landing in spam at Gmail, Outlook, or other providers

SPF

SPF failures, too many DNS lookups, record too long

DKIM

DKIM signature invalid, key rotation problems

DMARC

DMARC reports full of failures, policy unclear

Blacklist

IP on blacklist, delisting not working

Delivery

Mail not arriving, no bounce, no error

Specific

This is what I have experience with and can help you with.

→ SPF, DKIM, DMARC configuration & troubleshooting
→ Postfix/SMTP flows
→ Mail server setup & hardening
→ DNS configuration & propagation issues
→ Blacklist removal & reputation management
→ Email authentication debugging

Specialist pages

Mail Deliverability

Mail landing in spam, SPF/DKIM/DMARC misconfigured, blacklists, reputation issues. I debug your mail flow and make sure your messages arrive.

Email Authentication

SPF DKIM DMARC BIMI MTA-STS

Mail Servers

Postfix Dovecot Rspamd SpamAssassin

Mail Deliverability Audit

Complete analysis of your mail setup: DNS records, authentication, server configuration, and reputation. Including concrete recommendations and implementation support.

On my blog

How I built a SaaS in my spare time

How I built MailShield, a platform that monitors 8 email security protocols from a single dashboard.

Other services

[NET] Network & Infrastructure [LNX] Linux & Automation [TEL] VoIP & Telephony [WEB] Web Infrastructure [DBA] Database Recovery [APP] Self-Hosted Apps [VCS] App Deployment & Hosting

Need help with mail & dns?

Get in touch for a no-obligation conversation. Response same day.

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