Cannot access third-party S3 provider Contabo

Hi, when we try to connect to Contabo’s S3 Object Storage service SQLbackupAndFTP refuses to accept the string we pass it in the GUI. I figure this has to do with the fact that they use a URL which does not terminate with a top-level domain.

i.e., They follow a pattern as in this example:
https://usc1.contabostorage.com/myBucketName

(as opposed to https://mybucketName.usc1.contabostorage.com or similar)

So any fixes for this so we can access that service?

Hello Jose,

Thank you for your message.

To resolve this issue, we recommend setting up a Custom S3-compatible connection.

Please follow this guide to set it up: S3 Compatible Custom - SQLBackupAndFTP Documentation.

Additionally, could you please try specifying the URL as https://usc1.contabostorage.com and set the bucket name as myBucketName?

Do you encounter any errors in this case?

Looking forward to your response.

Hi
I am also trying to connect SQLBackupAndFTP to my contabo storage, but it fails. Is the URL still usc1.contabostorage.com

Hi Soren,

Regarding the Contabo storage connection: the endpoint URL in your backup job settings should be:

https://usc1.contabostorage.com/

Could you please double-check your settings (as shown in your screenshot) and confirm they look the same — including the https:// and the trailing /?
Screenshot 2025-12-26 165654

We’ve tested this endpoint on our side and can confirm it works.

If the issue still persists, could you please contact our support team directly so we can investigate with the full details?

You can reach us via the support form: SQL Server Backup Support - SQLBackupAndFTP

Please include the exact error message you’re seeing (and ideally a screenshot) and confirm which endpoint you’re using.

Thank you!