Pre-send spam score test
Send a test message to a unique address and get a deliverability report — authentication, content flags, and blacklist status in one view.
Check spam scores and monitor inbox placement before you send.
Reach the inbox, not the spam folder. SMTPServer includes deliverability tools to test content, authentication, and reputation — then monitor results with live analytics.
What is inbox monitoring?
Inbox monitoring means checking whether your emails are likely to land in the inbox or spam folder before and after you send. SMTPServer combines a free Mail Tester, AI-assisted spam scoring, DNS and blacklist checkups, and real-time bounce tracking so you can fix problems early.
How do you improve inbox placement?
AI mail tester insights
Paid plans include an AI-assisted spam tester with actionable suggestions to improve subject lines, links, and HTML structure.
Live DNS & blacklist checks
Verify SPF, DKIM, and DMARC records and monitor blacklist status from the dashboard — catch auth failures before recipients do.
Post-send monitoring
Track bounces and complaints in analytics. Use Message Streams to isolate problematic campaigns from transactional mail.
What is included on paid plans?
Reliable delivery from €39/month for 100,000 emails with one dedicated IP — no daily sending caps.
Deliverability correction
Guidance and tooling to fix authentication, content, and reputation issues flagged in tests.
Advanced spam tester
Go beyond a basic score with detailed insights on what to change before your next campaign.
Dedicated IP reputation
Your sending reputation is yours alone — not shared with other senders on a pooled IP. See dedicated IPs.
Test your email now — free.
Use the Mail Tester to generate a test address, send your campaign copy, and review the score before scaling volume.