
1. Mailburger
mailburger.io
€20/mo vs $60/mo
Mailburger Pro covers 50,000 contacts and 500,000 emails a month for €20, while SendGrid Marketing Campaigns with automation starts at $60 a month for 10,000 contacts (Advanced 10K); automations start at €5 on Mailburger Grow vs $60 for SendGrid Advanced at 10,000 contacts.

2. OwnMailServer
ownmailserver.com
$0.20 per 1,000 emails
OwnMailServer's pay-as-you-go hosted platform is $0.20 per 1,000 emails ($20 at 100k, $50 at 250k, $100 at 500k, $200 at 1M) versus SendGrid Essentials/Pro ($34.95–$89.95 at 100k, about $249 at 300k, about $499 at 500k, about $799 at 1M as of October 2026); with a dedicated IP, SendGrid Pro is about $499 at 500k against $100 on their platform.