A hosted upload server, not a poll of yours: SFTP and SCP on port 22, explicit (AUTH TLS, port 21) and implicit (port 990) FTPS - cleartext FTP is refused. Usernames, passwords and SSH keys are managed in the console, with a per-service IP firewall and a browser uploader for people without a client. The login is upload-only: a file leaves the server the moment its upload completes, so nothing sits on it and there is nothing to poll.

DocEvent's channel server matches the incoming file to your configured route, queues it for delivery, and ensures no file is ever lost — even during downstream outages.

Delivery into any bucket that speaks the S3 API - Amazon S3, Cloudflare R2, MinIO, Backblaze B2, Wasabi, Supabase Storage, Hetzner Object Storage and friends (custom endpoint URL and path-style addressing supported). Authenticate with an access key, or on Amazon S3 let DocEvent assume an IAM role in your account so no long-lived credentials change hands. Configurable key prefix, and a built-in connection test that verifies the bucket, credentials and permissions before the first file flows.