# Postmark vs Thunderbird — Fit & Features

Canonical: https://trutool.co/compare/postmark-vs-thunderbird
Author: Sandeep (https://trutool.co/authors/sandeep)

Compare Postmark and Thunderbird by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### Postmark
Application email delivery.
Best fit: Individuals and teams managing email considering Postmark for this job: Application email delivery.
- Application email delivery
Before you choose: Test migration, mailbox access, search, retention, external delivery, and account recovery in the exact plan you intend to use.
Pricing: https://postmarkapp.com
- [Read Postmark profile](https://trutool.co/tools/postmark): Read Postmark profile

### Thunderbird
Open-source email application.
Best fit: Individuals and teams managing email considering Thunderbird for this job: Open-source email application.
- Open-source email application
Before you choose: Test migration, mailbox access, search, retention, external delivery, and account recovery in the exact plan you intend to use.
Pricing: https://www.thunderbird.net
- [Read Thunderbird profile](https://trutool.co/tools/thunderbird): Read Thunderbird profile