All categories
Sending & Deliverability
Connect an email provider, verify your domain, land in the inbox.
Which email provider should I choose?
A plain-English comparison to help you pick a sending engine in 2 minutes.
Set up your Amazon SES account (and get approved)
Create SES, verify your domain, and get out of the sandbox — without getting your account paused.
Connect Amazon SES
The cheapest way to send (~$0.10 per 1,000 emails). About 20 minutes, one time.
Set up bounce handling for Amazon SES
Send SES bounce & complaint events to Mailbo so bad addresses are removed automatically.
Connect Mailgun
A popular, easy provider with great deliverability. ~10 minutes.
Connect SendGrid
Established and scalable. The username is literally "apikey" — read Step 2.
Connect Postmark
Fast and reliable. For marketing, use the Broadcast host — see Step 2.
Connect Mailjet
Simple, EU-friendly, with a real free tier (6,000/month). ~10 minutes.
Connect SMTP2GO
One of the easiest to set up, with a free 1,000 emails/month forever.
Connect MailerSend
Modern and developer-friendly. Note: no port 465 — use 587.
Connect a custom SMTP server
Use any other provider or your own mail server by entering its SMTP details.
Verify your domain (SPF, DKIM, DMARC)
The DNS records that prove you own your domain — and keep you out of spam.
What is a tracking domain and do I need one?
A small CNAME that puts your own brand on tracked links — and helps deliverability.
My emails go to spam — how do I fix it?
The practical checklist for landing in the inbox instead of the junk folder.
What are bounces and how Mailbo handles them
Hard vs soft bounces, complaints, and why removing bad addresses protects you.