Taking too long to receive from external domains

Question

I'm having a problem with Amazon Workmail, emails sent from an external domain takes about 30 mins to be received, and from gmail for example it is received instantly. Also, when im send an email between users from the same WorkMail domain i get and error with this message "An error occurred while trying to deliver the mail to the following recipients:"

I have no rules set and my domain was acquired through route 53 and all the DNS records were updated automatically by Amazon

Answer

This issue could be caused by a number of different factors, including misconfigured DNS settings or a problem with the email routing configuration. It's also possible that there is an issue with the email server or a network connectivity problem.
* Verify DNS settings
* Check email routing configuration
* Check email server logs
* Check network connectivity
* Check for error messages in recipient's inbox

Taking too long to receive from external domains

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