Oracle APEX - Using Outlook 365 as outbound email

Here the steps to use SMTP Outlook 365 as email outbond from oracle APEX

• Setup SMTP outlook 365 relay register your APEX host and get the smtp server name and port. how to to it check this youtube
• Create oracle wallet on DBaaS/DB to *.outlook.com
• Set Instance Setting > Email values on Workspace Internal

• Test it using apex_email

  procedure send_email_test(
    p_from    varchar2 default 'info@yourdomain.com'
  , p_to      varchar2
  , p_subject varchar2 default 'Email test'
  )
  as
    l_body      clob;  
  begin
  
    l_body := 'Thank you for your interest in the APEX_MAIL package.'||utl_tcp.crlf;
    l_body := l_body ||'  Sincerely,'||utl_tcp.crlf;
    l_body := l_body ||'  The APEX Dev Team'||utl_tcp.crlf;
    apex_mail.send(
        p_to       => p_to,   -- change to your email address
        p_from     => p_from, -- change to a real senders email address
        p_body     => l_body,
        p_subj     => p_subject
    );
        APEX_MAIL.PUSH_QUEUE; 
  end send_email_test;

Thats it and good luck :D