// how to fix
Not sure what is wrong?How to fix email problems
Your test or scan found a problem? Find the matching guide below: what it means, why it matters, and how to fix it step by step.
Bounce 40
DNS 36
DMARC 33
Reputation 33
SPF 30
DKIM 27
Gmail 19
Security 19
Blacklist 18
Content 14
Headers 11
Mailing list 11
Spam score 11
Reverse DNS 10
Microsoft 365 8
Outlook 8
Mail server 7
MX 5
Yahoo 4
TLS 3
Apple 2
Google Workspace 2
BIMI 1
E-commerce 1
GMX 1
WordPress 1
Zoho 1
2 guides · tag Google Workspace
| Problem | In short | Tags | |
|---|---|---|---|
| Set up SPF, DKIM and DMARC for Google Workspace | A complete checklist to authenticate a domain that sends with Gmail in Google Workspace: one SPF line, DKIM turned on in the Admin console, and a first DMARC record. | Fix it | |
| Gmail "550 5.4.5 Daily user sending limit exceeded": what to do | Your Gmail or Google Workspace account reached its daily sending limit. Learn the limits, how long the block lasts and how to send bulk email properly. | Fix it |
Not sure what is wrong?
Send a test email or scan your domain: the report tells you which problem you have.