I am having issues where some of my emails are landing on the SPAM folder. so I talked to the email marketing company, they told me that to verify the domain as well. If you check this article – https://help.emailoctopus.com/article/107-verifying-an-email-address-or-domain
email address is currently verified, but I believe I have verify the domain. think I have to vertify via AWS account, I have never used AWS before..