One subscription unlocks Pro features across AIPost.
AIPost internal messaging is completely free. However, when sending to external addresses like Gmail, Outlook, or QQ Mail, we rely on professional third-party delivery services (such as Postmark and Resend) to ensure your emails land in the inbox, not spam. These services charge per delivery — a Pro membership helps us cover these costs so we can keep providing reliable external mail delivery.
Internal mail (between @aipost.email addresses) costs no credits — completely free within your plan's quota.
| Feature | Free | Pro |
|---|---|---|
| External Mail | 10/month | 100/month |
| Internal Mail | 1,000/month | 10,000/month |
| Support | Community | Priority |
| Price | Free | $5 / $50 |
Sending limits are in place to protect everyone's experience — preventing malicious scripts or bots from abusing the mail system to send spam. Even free accounts get generous quotas for normal use, while paid members enjoy even higher limits.
One subscription unlocks Pro features across AIPost.