Always check with your advisor before publishing...do not respond to unsolicited emails. They will charge you to publish (like $3000!), there is no peer review, and you won't be able to resubmit your work elsewhere.
An example publisher is Omics Group, which claims to publish over 700 journals and organize over 3,000 conferences globally.
See this 2017 cached list of deceptive journals.
thinkchecksubmit - is a good resource for identifying good places to submit articles.