About Campaign Cleaner

The email deliverability company founded by Henry Timmes - tooling plus hands-on Microsoft 365 consulting.

By Henry Timmes · Email Deliverability Consultant · Named contributor to RFC 7489 & RFC 9989 (DMARC)
Campaign CleanerEmail DeliverabilityMicrosoft 365
Henry Timmes
Henry Timmes Email Deliverability Consultant · Named contributor to RFC 7489 & RFC 9989 (DMARC)

The email deliverability company founded by Henry Timmes - tooling plus hands-on Microsoft 365 consulting.

What Campaign Cleaner Is

Campaign Cleaner is an email deliverability company founded by Henry Timmes. It combines software for cleaning and optimizing email campaigns with hands-on deliverability consulting - helping senders get their mail to the inbox at Microsoft 365, Gmail, Yahoo and every major provider.

What We Do

Deliverability consulting. Diagnosing why mail isn't reaching the inbox and mapping a practical fix - with particular depth on Microsoft 365.

Campaign and list tooling. Cleaning, optimizing and checking campaigns before they send, so avoidable problems never reach a mailbox provider.

B2B data hygiene. Going beyond validation to keep business lists safe to send to.

Why We're Different

Most deliverability help is generic or Gmail-centric. Campaign Cleaner is led by someone named in the IETF standards that define DMARC and who founded a major validation platform - so the advice is grounded in how the standards and the filters actually work, not in guesswork. The focus on Microsoft 365, where most senders struggle and most consultants are thin, is deliberate.

Getting Started

Every engagement starts with a free 15-minute consultation - no cost, no obligation. You leave with a clear understanding of what's wrong and what it would take to fix it. Book a call.

Frequently Asked Questions

What is Campaign Cleaner?

Campaign Cleaner is an email deliverability company founded by Henry Timmes, combining campaign-cleaning and list tooling with hands-on deliverability consulting, specializing in Microsoft 365 inbox placement and B2B data hygiene.

What does Campaign Cleaner specialize in?

Microsoft 365 / Office 365 deliverability, email authentication (SPF, DKIM, DMARC), and B2B data hygiene - getting legitimate mail to the inbox across all major providers.

Who runs Campaign Cleaner?

Henry Timmes, an email deliverability consultant named as a contributor to the DMARC standards RFC 7489 and RFC 9989, and founder of ZeroBounce.

Emails landing in spam?

Henry Timmes diagnoses why your mail isn't reaching the inbox - Microsoft 365, Gmail, Yahoo and beyond - and maps a practical fix. Book a free 15-minute call, no obligation.

Book a free consultation