i get an addon sendgrid for my app of heroku, but when i want go to my account of sendgrid,i need send email for the confirmation and heroku choose automatically an Heroku email example: appXXSADAS0878@heroku.com, i confirm this email, the same way how say the tutorial but i not have access to this, then my sendgrid account never is authenticated and after of 10 minutes waiting the confirmation the account is banned.anyone can help me with this?, i am deploying a rails app.
this tutorial that i follow for the add on sendgrid https://devcenter.heroku.com/articles/sendgrid
I do not know why would Heroku tell SendGrid to send the confirmation email to a @heroku.com email address.
However, consider using SendGrid without the Heroku add-on (you do not need SendGrid's add-on installed on Heroku, to send emails from your application).