At least one of the bulk email platforms Trump's campaign was using to send between 50 and 60 million emails moved rapidly to suspend his access because the "email in question has raised serious security and legal concerns among Adestra and other industry leaders."
From Campaign and Elections ...
Adestra, a U.K.-based email service platform, confirmed to C&E that within the last 48 hours it suspended service to Paramount Communication Group, the Beltway-based company working directly with Trump’s digital team who was reselling the platform's services.
“Adestra, a leading global provider of innovative marketing technology software and services, has suspended services to one of its agency clients, which recently sent an email on behalf of the Trump Campaign,” Henry Hyder-Smith, co-founder and CEO of Adestra, said in a statement. “The email in question has raised serious security and legal concerns among Adestra and other industry leaders.”
Hyder-Smith added: “If we believe that a client is misusing the platform or not adhering to the high standards to which Adestra is committed, we may exercise our contractual option to suspend their service from sending email while still allowing them access to our products and their data.”
This doesn't mean Trump won't be able to send emails anymore. There are more vendors out there. Indeed, he was likely already using multiple vendors. But Trump's sudden move from indifference to fundraising to maniacal fundraising has forced him to become perhaps one of the biggest spamming operations going at the moment. And it's not clear how that can be quickly resolved or improved.