Spam?

[HelloSushineWall]

Hi! When I try to make a purchase, l'application asks for your e-mail to send you the shipping details. Could you provide it? Thanks!

I just received this message. 

[givemeacrown]

@HelloSushineWall That is a scam. A buyer does not need your email address to make a purchase on Etsy.

[ModKenneth · Accepted solution]

Hello,

Etsy is actively engaged in preventing scammers from targeting our community members. If you receive a suspicious message, please proceed with caution. Etsy Support will never ask you to provide personal information via Etsy Messages, such as your email address or password. Any legitimate message from us will show in your "From Etsy" folder.

If you receive a suspicious message, here’s how to report it:

1. Sign in to Etsy.com and go to Your Account.
2. Go to Messages. 
3. Select the suspicious message from your inbox. 
4. Choose Mark as Spam.

You’ll find examples of common scammer techniques and phishing messages here in our Help Center. Read our Account Security Checklist in the Seller Handbook for more steps you can take to protect your account.

[ButterflyFeetDigital]

Scammers tend to target new shops.
Things to read:

https://community.etsy.com/t5/Announcements/Protect-Your-Account-From-Scammers/m-p/143158945#M1882

https://community.etsy.com/t5/Managing-Your-Shop/How-to-Spot-a-Scam-No-a-Buyer-Doesn-t-Need-Your-Ema...

https://community.etsy.com/t5/Announcements/New-From-Etsy-section-in-Messages/m-p/143722497#M1899

https://help.etsy.com/hc/en-us/articles/360000343128-How-to-Handle-Spam-and-Suspicious-Messages

If you receive an actual order, you will see it in your "Orders and Shipping" section and you will receive an email from Etsy notifying you that you have a sale, and there will be a notification in your dashboard as well. 

EDITED to add:

After reading your post more closely, I see you are inquiring as a buyer, not a seller? That might be different. I don't know how you could be scammed if you are the one trying to make a purchase.