In order to connect your Amazon SES account, you need to follow these steps:

1. At the top of the screen, click on "Amazon SES" to access the service.

2. Click on the "Create Identity" button within Amazon SES. Follow the prompts and on-screen instructions to set up and configure your Amazon SES object.

3. After creating your Amazon SES object, follow the provided instructions to connect your domain or specific email address to Amazon SES for seamless email communication.

By default, your AWS Account's SES capabilities are sandboxed, and being in an SES sandbox comes with certain restrictions.

https://docs.aws.amazon.com/ses/latest/DeveloperGuide/request-production-access.html

To help protect our customers from fraud and abuse and to help you establish your trustworthiness to ISPs and email recipients, we do not immediately grant unlimited Amazon SES usage to new users. New users are initially placed in the Amazon SES sandbox. In the sandbox, you have full access to all Amazon SES email-sending methods and features so that you can test and evaluate the service; however, the following restrictions are in effect:

Amazon SES can accept a maximum of one message from your account per second.

See this blog post that outlines steps to get out of the sandbox. https://aws.amazon.com/blogs/ses/ses-limit-increase-form-consolidation

And here is a blog on how you can validate it:

https://stackoverflow.com/questions/49125878/using-aws-ses-smtp-error-554-message-rejected-email-address-is-not-verified-t

So, basically, you need to move your account from sandbox mode to production.

1. Navigate to the Amazon SES console, locate the "Verified Identities" page, and ensure that all necessary identities have been successfully verified for sending emails.

2. Click on the "SMTP Settings" tab in the Amazon SES console to configure SMTP settings for sending emails.

Find the "Create SMTP Credentials" button and click on it. Follow the step-by-step instructions provided on the screen.

4. Enter a unique name for the SMTP credentials in the "IAM User Name" field. For example: `IAM User Name: [ses-smtp-user-warmupinbox]`.

Once you have filled in the necessary details, click on the "Create" button to generate the SMTP credentials.

After the creation of SMTP credentials, a message saying "Show User SMTP Security Credentials" will appear. Click on this message to reveal the SMTP endpoint address and the associated credentials for secure email transmission.

5. After that, return to the </Amazon SES → SMTP settings/> tab and save the data you can see in Simple Mail Transfer Protocol (SMTP) settings → SMTP endpoint → </ email-smtp.eu-west-1.amazonaws.com />

SMTP-only option

Email address: email address added and verified in your Amazon SES account

SMTP username: the SMTP username you created earlier
​SMTP password: the SMTP password you created earlier
​SMTP host: SMTP endpoint you saved in your SMTP settings
​SMTP port: 465 (or 587, 25)
​SSL/TSL: YES (when using port 587 or 25 SSL/TSL needs to be turned OFF)

Please note, that you can use the SMTP Only option only if you have purchased the Send-only plan.

SMTP & IMAP Option

With the trial, Basic, Pro, and MAX plans, you can connect your Amazon SES account only when creating an IMAP connection. The email address for the IMAP connection must be the same email address as the one you specified in the SMTP.

In this case, instead of using the SMTP-only option, you will connect your inbox using the SMTP & IMAP option.

For the IMAP part, you will need to gather this information from the inbox that will be receiving emails :
​
​IMAP username: the email address of the inbox that will be receiving emails
​IMAP password: the password from this inbox. If it´s a Google inbox, you will need to create an app password and use it instead of the regular password from your inbox.
​
Here are the instructions:
​https://help.warmupinbox.com/en/articles/4934806-configure-for-google-workplace-with-two-factor-authentication-2fa?location=conversation

​IMAP host:
​IMAP port: typically 993 (or you can use 143)
​SSL/TSL: using port 993 - ON, using port 143 - OFF

Note: the SMTP/IMAP option doesn´t work with Office365 accounts as they disabled the Basic authentication in 2023.