Sender Identities API
(warning)
Legacy Marketing Campaigns
This covers the obsolete Legacy Marketing Campaigns API.
(information)
Use the Sender Identities API
To learn more about the Sender Identities API, see the Marketing Campaigns Senders API.
To protect your sending reputation and to uphold legitimate sending behavior, Twilio SendGrid requires customers to verify their Sender Identities. Use either Domain Authentication or Single Sender Verification.