Alternatives / Mailchimp
Postgun vs Mailchimp: send through your own Mailgun instead
Mailchimp is an all-in-one marketing platform that sends from its own infrastructure and prices plans by audience size. Postgun is free and sends through your own Mailgun account, so you pay Mailgun's sending rates and keep your domain's reputation.
Feature comparison
| Feature | Postgun | Mailchimp |
|---|---|---|
| Price | Free (you pay Mailgun for sending) | Plans priced by contact count and features |
| Sending infrastructure | Your Mailgun account and domain | Mailchimp's own servers |
| File attachments | Shared files or a different file per recipient | Not supported, links only |
| List import | CSV, Excel (.xlsx), text | CSV, integrations |
| Email designer | Drag-and-drop or raw HTML | Drag-and-drop with templates |
| Automations, landing pages, CRM | No | Yes |
| Unsubscribe link and one-click header | Always on | Always on |
Last reviewed October 2026. Check Mailchimp's own site for current pricing and features.
Choose Mailchimp if
- You want automations, landing pages, audience analytics and a CRM in one place.
- You don't have, or don't want, your own email provider account.
Choose Postgun if
- You already pay for Mailgun and don't want to pay again per contact.
- You need to attach files, especially a different file for each person.
- You want campaigns sent from your own domain's reputation.