Your SendGrid username can be any string of characters that works for you! If you want, you may even use your email address as your username.
If you are unsure what your username is, consider checking your existing code or SMTP integration, as your username will probably be in there plain as day.
If you still can’t find your username, get in touch with support, and we can help you track it down!
SendGrid also allows account owners to invite multiple teammates, or individual users of the same account, with their own login credentials.
If you are a teammate on a SendGrid account and have forgotten your password, please contact your account administrator or reach out to SendGrid Support.