In addition to the above answers, it may be useful to check whether the journal is listed on PubMed to verify it is a legitimate and reputable journal: https://pubmed.ncbi.nlm.nih.gov/
As a general rule, it is unusual for a reputable journal to send unsolicited e-mails, often opening with 'Greetings!' and asking for your manuscript...
Dear experts, have a look at this thread about PREDATORY JOURNALS and share your experience. https://www.researchgate.net/post/Are_you_serving_predatory_journals_as_a_peer-reviewer_or_editor