In order to help you get the best deliverability, here are some informational articles we have about our recommended sending practices and methods:

Confirmation & Double Opt-In Emails

Sending Peer-initiated and Invitation Emails

Reconfirmation Email Campaigns

What Are Spam Traps And How To Avoid Them

Why Purchased Email Lists Are No Good

If you have any questions about these sending practices or methods and how they can help improve your deliverability, please contact the SendGrid Support Team. Our Deliverability 101 article also has a multitude of other deliverability tips and tricks.