![]() Please let us know if you have further queries or concerns.IEditorial Note: These blog posts represent the opinion of DoNotPay’s Writers, but each person’s situation and circumstances vary greatly. I would also suggest you to make sure that you maintain a very low bounce and complaint rate.Īdditionally, I would also suggest you to reach out to postmaster of Recipient ISP (gmail) to understand why they are marking your emails as spam. However, you can improve email deliverability by authenticating your emails in SES by using SPF, DKIM and DMARC so that email authentication passes. ![]() As you mentioned that the same email body was previously delivered to inbox so I am suspecting that you are sending good quality emails. There can be several factors due to which an email can land in spam. If the ISP flags the email message as spam, then the email might be placed in the recipient's spam or junk folder.įrom SES end, I would recommend you to follow all SES sending best practices to improve email deliverability. If the ISP accepts the email and sends a 250 OK response, then the ISP decides whether the email is categorized as spam and determines the overall mailbox placement. "550 4.4.7 Message expired: unable to deliver in 840 minutes." If Amazon SES is unable to deliver your email, it returns an error message similar to the following: Please note that Amazon SES is an email relay service, that is, it accepts the message from sender ISP, processes it and attempts to deliver email messages to the recipient's mail server (ISP) until the ISP accepts the message and sends a 250 OK response. Hi understand that you use AWS SES to send emails, however suddenly the emails started landing in spam folder.
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