Hi,
I have this simple workflow that send an email with attachments. It’s running fine in AP.
However, when i push to the hub I got this error in the Send Email node only. I have already increased timeout settings. I also did small testings with just send email node and having same error message. What could be happening? Can someone help?
How did you define the email service and is the KNIME Business Hub instance able to reach that location? For example, if the KBH is air-gapped, it might not be able to reach a URL. Likewise, does the KBH have credentials to connect to the email service? (The error message might be providing relevant troubleshooting guidance, but it might not, so it would be prudent to consider how KBH is different from KAP and how their respective environments differ.)
Hi @llepome, thank you for your guidance — that makes sense.
The email service is defined via SMTP.
Based on your points, this is likely related to the KNIME Business Hub environment, since the workflow runs fine in KAP.
I’ll check with the internal team responsible for the Hub configuration. We are in the process of migrating to KNIME, so this setup is still new for us.
From your experience, what would be the most important things to verify on the Hub server machine?
Network access/firewall rules, credentials/secrets configuration, or anything else?
Thanks again for the help.
