Fake Emails in Email List Building

Qai88

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Hi All! So I managed to get some subscribers to my list and at each time these subscribers sign up, they're all jumbled up with some random domain name. Here's an example (not a real email):

[email protected]

I googled for "how to make fake emails" and there's plenty of email hosting providers to make these. Though the domain is legit for being a hosted Wordpress site but that's it.

I even have emails from freemail.hu, nokiamail, o2.pl, mixbox.pl, and many more.

So now, I am happy that I am getting subscribers, but fake subscribers? I am not sure what I do with them. Will they cause any harm to what I do? Should I be concerned?