Firewall Requirements for SendGrid Connector using Tibco Scribe Online
If you use the SendGrid Connector and you have a restrictive firewall, here are the endpoints/ports that need to be opened on the on-premise agent to allow email to be sent using SendGrid:
Open ports 80 and 443 to:
Open ports 25, 465, 587, 2525 to:
Allow the traffic to api.sendgrid.com and smtp.sendgrid.net regardless of the destination IP address.
For Palo Alto Firewalls: Allow application identification for SendGrid. Add a custom URL category with these two domains - *.sendgrid.com and smtp.sendgrid.net