As a sendgrid customer, this explains why, even after upgrading to dedicated ips and setting all our auth/security stiff correctly we still have emails being bl

As a sendgrid customer, this explains why, even after upgrading to dedicated ips and setting all our auth/security stiff correctly we still have emails being blocked inexplicably. Top off the rubbish customer service - they didn’t respond to me about getting blocked by outlook on our private IP until I tweeted them... - and next week looks like my job is to move to postmark.