Unable to send email using play-mailer and Amazon SES

I am trying to send email using Play Mailer 6.0.1 but am not able. I am on Play 2.6.12

I have configured Amazon SES. My domain is verified and enabled for sending (the DKIM is still pending though). I have added the details in application.conf

play.mailer{
#// (mandatory). The domain of mail server i.e. the server is responsible for sending/receiving emails for this domain
  host = "email-smtp.us-east-2.amazonaws.com"
  # (defaults to 25)
  port = 25
  # (defaults to no)
  ssl = yes
  # (defaults to no)
  tls = yes
  # (defaults to no)
  tlsRequired = no
  #what if I need more than one server to manage different types of emails. customer care, signup etc.?
  #The user in the mail server whose account will be used to send emails
  # (optional) //TODOM - am I suppose to enter the password here?
  # TODOM - I think user property is not reuqired any more as this is defined is mail{}
  user = "as required"
  #the password of the user. (optional)
  #TODOM - not safe to keep password here. What is the option???
  password = "as required"
  # (defaults to no, to take effect you also need to set the log level to "DEBUG" for the application logger)
  debug = yes
  # (defaults to 60s in milliseconds)
  timeout = null
  # (defaults to 60s in milliseconds)
  connectiontimeout = null
  # mock=true mails client will only log all the email properties instead of sending an email.
  # to send actual mails (via hmailServer), use mock= false
  mock = false
}

I am seeing the following logs

sending email: Email(Welcome,no-reply@mydomain,List(manuchadha25@gmail.com),None,Some(<a href=http://localhost:9000/ws/users/signup/1ce612fb-7311-4fa4-ba65-94ab5142d96f>Click here to verify email</a>),None,List(),List(),List(),None,List(),List())
DEBUG: JavaMail version 1.5.6
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map


2020-07-09 20:49:26,160 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
2020-07-09 20:49:26,160 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 

2020-07-09 20:49:26,207 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG SMTP: need username and password for authentication
2020-07-09 20:49:26,208 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 

2020-07-09 20:49:26,208 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG SMTP: protocolConnect returning false, host=email-smtp.us-east-2.amazonaws.com, user=manuc, password=<null>
2020-07-09 20:49:26,208 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 

2020-07-09 20:49:26,209 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG SMTP: useEhlo true, useAuth true
2020-07-09 20:49:26,209 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 

2020-07-09 20:49:26,209 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG SMTP: trying to connect to host "email-smtp.us-east-2.amazonaws.com", port 25, isSSL false
2020-07-09 20:49:26,210 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 

But there is no activity in Amazon SES and I haven’t received any emails.

enter image description here

What am I missing? I notice that I am not able to ping the smtp domain name - host = “email-smtp.us-east-2.amazonaws.com

enter image description here

UPDATE. I followed the steps here and created a Powershell script https://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-email-smtp-client-command-line.html#send-email-using-openssl

function SendEmail($Server, $Port, $Sender, $Recipient, $Subject, $Body) {
    $Credentials = [Net.NetworkCredential](Get-Credential)

    $SMTPClient = New-Object Net.Mail.SmtpClient($Server, $Port)
    $SMTPClient.EnableSsl = $true
    $SMTPClient.Credentials = New-Object System.Net.NetworkCredential($Credentials.Username, $Credentials.Password);

    try {
        Write-Output "Sending message..."
        $SMTPClient.Send($Sender, $Recipient, $Subject, $Body)
        Write-Output "Message successfully sent to $($Recipient)"
    } catch [System.Exception] {
        Write-Output "An error occurred:"
        Write-Error $_
    }
}

function SendTestEmail(){
    $Server = "email-smtp.us-east-2.amazonaws.com"
    $Port = 587

    $Subject = "Test email sent from Amazon SES"
    $Body = "This message was sent from Amazon SES using PowerShell (explicit SSL, port 587)."

    $Sender = "no-reply@mydomain.space"
    $Recipient = "manuchadha25@yahoo.com"

    SendEmail $Server $Port $Sender $Recipient $Subject $Body
}

SendTestEmail

to send an email using Powershell. That works.

 PS C:\Users\manuc\Documents\manu\codingjedi> powershell -ExecutionPolicy ByPass -File .\SendEmail.ps1

cmdlet Get-Credential at command pipeline position 1
Supply values for the following parameters:
Credential
Sending message...
Message successfully sent to manuchadha25@yahoo.com
PS C:\Users\manuc\Documents\manu\codingjedi>

So it seems that issue is with play-mailer. It is probably not picking the credentials correctly as per this print

akka.actor.default-dispatcher-2 - DEBUG SMTP: need username and password for authentication
    2020-07-09 20:49:26,208 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - 
    
    2020-07-09 20:49:26,208 [DEBUG] from play.mailer in application-akka.actor.default-dispatcher-2 - DEBUG SMTP: protocolConnect returning false, host=email-smtp.us-east-2.amazonaws.com, user=manuc, password=<null>

In your Play app you use port 25, but in your powershell script you use 587.

play.mailer{
...
  port = 25
function SendTestEmail(){
...
    $Port = 587

I guess you need to use 587 in you Play app as well…