Email package compatibility for encrypted protocols (SparkPost service)

I’m having problems trying to use SparkPost Email Delivery Services with the Meteor’s email package.

I have set the env. var. MAIL_URL to:


but whenever the app sends an email I get:

AuthError: Invalid login - 535 5.7.8 Sorry.

I think it could be because the service expects an encrypted protocol:
(from docs) Port:587 (Alternative Port: 2525) Authentication:AUTH LOGIN Encryption:STARTTLS Username:SMTP_Injection

and I’m not sure if the package supports it.

Does anyone used this service with Meteor?
If I’m right about the email.pkg lack of encryption support for ports other than 465, what do you suggest me to do.


@metjo were you able to solve this issue ?