Sendlix Limits
To ensure fair usage and optimal performance for all users, Sendlix enforces the following service limits. Please review these carefully to ensure your integration operates within these boundaries:
| Feature | Limit | Notes |
|---|---|---|
| Email Sending 1 | 5 per minute | Rate limiting applied |
| Multiple Recipients | 50 per request | Per single API call |
| Requests size | 4 MB | |
| Image Size | 1 MB | Per individual image |
| Image Storage Duration 2 | 180 days | Auto-cleanup after expiry |
| Scheduled emails | 720 hours in advance | Emails can be scheduled up to 30 days ahead |
| Groups Sending limit 3 | 2 group emails per day |
Notes:
1 This initial limit of 5 emails per minute is strictly for spam prevention. We are happy to increase this limit to 100+ emails per minute for any legitimate use case. To request an increase, please contact our support team at support@sendlix.com or via our support portal. We review and approve requests quickly to ensure your service remains uninterrupted.
Also keep in mind that if we detect suspicious activity, we may reduce limits to 1 email per minute. If you believe this is a mistake, please reach out to our support team.
2 When uploading the same image multiple times, the storage duration resets to 180 days from the latest upload date.
3 For group emails, we check whether your current usage plus the new group email would stay below half of your standard email sending limit. If it does, we use your standard email sending limit. If it would exceed this threshold, we switch to the dedicated group email sending limit of 2 group emails per day.