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Marketing Email Setup

To send campaigns, DiveManager uses your own SMTP relay. This means emails come from your email domain, not a generic DiveManager address — which greatly improves deliverability and keeps your brand front and center.

Marketing email SMTP settings

What you need​

  • An SMTP server (your email provider or a dedicated sending service)
  • SMTP host, port, username, and password
  • A verified "from" email address on that domain

Popular options:

  • Amazon SES — very affordable, excellent deliverability
  • Mailgun — easy setup, good free tier
  • Brevo (Sendinblue) — popular in Europe, GDPR-ready
  • Your own mail server — fine if you manage deliverability yourself

Connecting your SMTP account​

  1. Go to Settings → Marketing Email.
  2. Fill in:
    • From name — what recipients see as the sender name (e.g., "Mareblu Diving")
    • From email — the sender address (e.g., info@mareblu-diving.it)
    • SMTP host — your provider's SMTP server address
    • SMTP port — typically 587 (STARTTLS) or 465 (SSL)
    • SMTP username — usually your full email address
    • SMTP password — your SMTP password or API key
  3. Click Save.
  4. Click Send test email to verify the configuration works.

If the test email arrives in your inbox, you're ready to send campaigns.

Troubleshooting​

SymptomLikely cause
Test email not receivedCheck spam folder; verify host/port/credentials
"Authentication failed" errorWrong username or password; try generating a new SMTP password
"Connection refused" errorWrong host or port; check your provider's documentation
Email delivered but from wrong addressThe "from" email must be verified/authorized on your SMTP provider

Email deliverability tips​

  • Use a dedicated sending domain (e.g., mail.yourdivecenter.com) rather than your main domain — this protects your primary domain's reputation.
  • Set up SPF and DKIM records for your sending domain. Your SMTP provider will give you the exact DNS records to add.
  • Warm up slowly — don't jump from 0 to 1,000 emails overnight. Start with smaller segments and scale up over a few weeks.
  • Keep your list clean — remove hard bounces and unsubscribed addresses regularly (DiveManager handles unsubscribes automatically).