Email & SMTP · 1 min read
Email Provider Blocks: Warnings and Sending Suspensions
What an email provider block is
An email provider block happens when a major provider such as Gmail, Yahoo or Outlook rejects your email because of poor reputation, spam complaints, authentication failures or blocklist listings. These blocks are tracked separately from regular bounces because they can damage deliverability quickly.
How the block system works
| Block rate | What happens | | --- | --- | | 3% | Warning email | | 5% | Sending paused for 12 hours (1st block) | | 3% after 1st block | Critical warning email | | 5% after 1st block | Sending paused for 24 hours (2nd block) | | 3% after 2nd block | Final warning email | | 5% after 2nd block | Sending permanently suspended (3rd block) |
All blocks reset after 7 days in a row with a block rate below 1%.
What you'll see
You'll get an email at each warning and block, and a banner in your account while sending is paused.
What to do now
- Review your bounce classifications to see which providers are blocking you and why.
- Authenticate your sending domain with SPF, DKIM and DMARC.
- Clean your list: remove hard bounces, complainers and long-inactive contacts.
- Improve content: fewer links, no shorteners, clear subject lines.
- Restart with small sends to engaged contacts.
Permanent suspension
If sending is permanently suspended, contact FunnelStreams support with what you fixed. Support can review the account and decide whether sending can be restored.