How can I validate a recipient e-mail address before sending calling SES?

Question

We want to send e-mails to user provided addresses for confirmation purposes. We would like to tell users beforehand whether their provided e-mail address is valid or not, so that we don't produce an error at runtime when calling SES.

Since the recipient address validation of SES is more strict than the browser (see https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/input/email#basic_validation), like requiring a top level domain, I was wondering if there is any documentation about validating recipient e-mail addresses.

rePost-User-8637555 · Answer

Hello! 
Thank you for reaching out.

Before addressing your query, allow me to explain that SES is an email service and the email flow looks like below:

Sender client application —> Sender MTA (SES in this case) —> Recipient MTA —> recipient mailbox application

MTA: Mail Transfer Agent (mail server)

Whenever SES receives an email from Client side it acknowledges back with the Message id i.e. after your application sends an email to SES, and SES accepts it for delivery (indicated by a message ID in the response). After SES accepts it, it will make an attempt to deliver the email.

Now, regarding your query, kindly understand that in SES we don’t have a mechanism that can validate the recipient before making an SES call. To achieve the validation of recipient, you can implement some feature at your application end.

Thank you

How can I validate a recipient e-mail address before sending calling SES?

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