Finding SMTP host and port knowing the e-mail address using JAVA API

[Andreea]

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I have a question and maybe you can help me. I made a simple application to send e-mails using Java API.

And I need to know if:

Is there any way to find out the SMTP host knowing the e-mail address of the one who will login to send an e-mail? And also the port?

For example, if the sender's e-mail address is (e-mail address removed) , the SMTP host is smtp.gmail.com and the port 465. If the sender's e-mail address is (e-mail address removed), the SMTP host is smtp.yahoomail.com and the port 25.

Supposing I don't know this, is there any way to find this information using Java API classes?

Please note that I'm new in both JAVA and JAVA Api..

Thanks in advance,

Andreea