typeform survey is blocked by email servers

@tmm, 

There could be a thousand different reasons that the email was blocked. Can you provide a little more information on the situation?

• When you say the link was blocked, do you mean that the link did not show up in the email or was it not clickable?
• Did the email bounce or get marked as spam?
• Was the email in plain text or HTML?
• Were you using Typeform’s email sharing option or were you using an email service (SendGrid, MailGun, Mandrill, etc)