Audit sender setup and monitor reputation across IPs and domains, using authentication (SPF, DKIM, DMARC) and BIMI, DNS configuration, and provider tools like Google Postmaster Tools, Yahoo Sender Hub, and Microsoft SNDS to diagnose blocklists, spam traps, and engagement drops. You''ll partner with Customer Success, Technical Support, and Engineering: taking customer calls, equipping CSMs for customer conversations, working through complex technical cases alongside Engineering, and turning what you see in tickets into documentation, training, and better processes.