Thanks for posting.
In general, email transmission times are largely dictated by the policies of the email server being used. After the printer passes the email on (which entirely occurs by the time "Completed" appears on the screen), then the body holding/sending the email will be the email server itself. Many email servers have security and anti-spam policies regarding email transmission that limits the sending of emails from autmated devices, such as printers. In some cases, an email that doesn't match a particular profile will be "scanned" for malicious content by the system, which otherwise would allow any other email to pass through. What you're experiencing is not uncommon for automated emails from devices such as printers. Keep in mind also that not only the SMTP server that you're sending the email through but any relay that then passes it on will also need to adhere to the policies with which it has been configured, possibility increasing any delays. That said, my immediate suggestion would be to test with another email server, and see if your time to receipt changes at all. If you have immediate access to the email server antispam policies (such as those that would exist on a MS Exchange server), then usually something called a "Whitelist" will exist, upon which you can add any devices you wish to always have approved email transmission. If you do have an MS Exchange server, you will want to contact your server administator before making any changes, but it would also be worth your time to discuss this issue with them.
Regarding your other points about slowness or speed issues you may be experiencing, I actually recommend you call into support. There may be legitimate reasons why any one particular document you print comes out slowly, but in general, I wouldn't expect this device to operate specifically slow on the whole. They could also talk to you about the email issue as well, if you have further questions.
