When you send a message to another member, they will receive a notification email with a link to your message. Therefore you don't need to write your email address in your message, members can always reply to your message through the website.
No need to rush
We strongly recommend not to write any personal information, such as email address or phone number, upon first contact. Not all members might be genuinely interested on language exchange. Also, by inviting someone to write directly to your email address, you are effectively asking their email address, which many people are not happy to disclose straight away.
try to get to know your potential language partner before exchanging personal information or setting up a meeting.