Which IP address do SnapLogic SMTP requests come from

Pipeline execution happens on Snaplexes, so all requests to Snap endpoints will come from the Snaplex IP address range. In this case, the Email sender snap will send a request to the SMTP server from the Snaplex node.

The IP address range for Cloudplexes is documented here.

The IP address range for Groundplexes will depend on the customer network. The dashboard shows the IP address for each Groundplex node under the “External IP” field in the Additional Information dropdown for the node.