Tech fixes · Email & Domains

Gmail, Yahoo or Outlook Rejecting Your Emails? How to Meet the Sender Requirements

Gmail, Yahoo and Outlook.com now reject or junk mail that isn’t properly authenticated. Every domain sending to them needs SPF or DKIM, and bulk senders need SPF, DKIM and a DMARC record aligned with the From address, plus one-click unsubscribe and low spam complaints. Fix your DNS records and each sending tool’s settings, then test.

Also searched as: 550 5.7.26 unauthenticated email · Gmail bulk sender requirements · 550 5.7.515 access denied · Yahoo sender requirements

Starting price
From $250
Where
Remote, anywhere in the U.S.
Quote
Fixed price before work starts

Try this first

  1. Read the bounce code, such as 5.7.26 from Gmail or 5.7.515 from Outlook
  2. Check SPF, DKIM and DMARC for your domain with a free checker
  3. Turn on DKIM in Microsoft 365 or Google Workspace and in every tool that sends as you
  4. Add a DMARC record, starting with p=none and reports
  5. Add one-click unsubscribe to marketing emails
  6. Clean old addresses from your lists to keep complaints low

When it’s more than a quick fix

If you send invoices, quotes or newsletters from several tools, or mail is already bouncing, every sender needs to be authenticated and aligned at once.

How we fix it remotely

We authenticate every service that sends as your domain, set up DMARC with reporting and test delivery to Gmail, Yahoo and Outlook.

In-depth guides

Get it fixed

How a remote fix works

  1. 1

    Tell us what’s happening

    Two minutes with the form on this page. No account needed.

  2. 2

    Get a fixed price

    A personal reply within one business day, with the price agreed before any work starts.

  3. 3

    We fix it remotely

    You approve access, follow progress and pay in your private client portal.

Questions

Who counts as a bulk sender?

Gmail and Outlook.com use about 5,000 messages a day to their users, and Yahoo applies similar rules. The basics now apply to everyone.

Does this affect my everyday business email?

Yes. Even normal mail can be junked or rejected without proper authentication.

Can you fix this remotely?

We authenticate every service that sends as your domain, set up DMARC with reporting and test delivery to Gmail, Yahoo and Outlook.

Want us to just fix it?

Tell us what’s happening. Most problems like this are fixed remotely, often the same day, and every request gets a personal reply within one business day.

  • Big projects and small ones are all welcome
  • Fixed-price quotes, no surprise invoices
  • You own your code, data and accounts
  • A client portal to track progress, invoices and payments
  • Rooted in Wisconsin, serving businesses nationwide

No pressure and no spam. We reply within one business day.

Ask us anything

Quick question? A real person replies within one business day.