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Email troubleshooting

What to do when email sending is paused because of Gmail, Outlook or Yahoo blocks

The "email sending is blocked" banner means a temporary pause (12 h; 24 h if it repeats) that ends on its own. Use the pause to find the cause under Settings › Email Services › Bounce Classification, fix SPF/DKIM/DMARC, clean your list and lower volume before resuming.

Updated on

Before you start

  • This only applies to accounts that send through the Elooo System email service.
  • A "provider block" is when Gmail, Outlook, Yahoo or another mailbox provider rejects your emails because of reputation, authentication, content or sending behavior. It is counted separately from regular bounces.
  • You need access to Settings › Email Services and, to fix DNS, to your domain's panel.
Where to find it

Settings › Email Services › Bounce Classification

Step by step

Know which stage you are in

  1. Warning email: arrives when your block rate rises above the healthy level (the warning shows your current rate, the recommended threshold and next steps). No pause yet.
  2. First pause (12 hours): if blocks continue, sending is suspended for 12 hours. You get an email and a banner appears at the top of Elooo System with the expected resume time.
  3. Second pause (24 hours): if the problem happens again, the next pause lasts 24 hours.
  4. In every case, sending resumes automatically when the pause ends. You don't need to request an unblock.

Find the cause

  1. Open Settings › Email Services › Bounce Classification.
  2. Review the block categories (DMARC failures, domain or IP reputation, content, technical configuration), the volume per provider and the exact error messages.
  3. Identify the 2 or 3 categories with the highest volume: those are the ones to fix first.

Fix things during the pause

  1. Stop non-essential campaigns and cancel sends scheduled for the next few hours.
  2. Check your domain authentication: SPF, DKIM and DMARC correct and aligned (see the related articles).
  3. Clean your list: remove invalid and bounced addresses and contacts with no interaction for a long time.
  4. Review content: broken links, misleading subject lines, spam-like wording, too many images.
  5. Lower your volume and, when sending resumes, start with your most engaged contacts only (people who open and click), ramping up slowly.

Keep it from happening again

  1. Avoid sudden volume spikes from one day to the next.
  2. Check Bounce Classification and Email Analytics regularly.
  3. Keep double opt-in for new subscribers and a visible unsubscribe link.

Tips

  • The thresholds in use: the warning fires at around 3% blocks and the pause at around 5%. Counters reset after 7 consecutive days with blocks below 1%.
  • In a future phase, repeated suspensions may lead to permanent suspension of sending on that account. Take the first warning seriously.
  • During the pause, SMS, WhatsApp and calls keep working; only email is stopped.

Common problems

  • The banner says sending is blocked and I have an urgent campaign → There is no way to skip the pause; sending resumes on its own at the time shown. Use SMS or WhatsApp for anything that can't wait.
  • I got the warning but don't know what's wrong → Open Bounce Classification: each category comes with an explanation and recommended actions.
  • Sending resumed and got paused again → The cause wasn't fixed. Correct authentication, reduce volume and send only to engaged contacts before returning to your normal pace.
  • Almost all blocks come from Gmail → Usually missing authentication (DKIM/DMARC) or reputation. Check DMARC and warm up the domain slowly.

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