Can you address to whom it may concern on cover letter?
You shouldn't use “To Whom It May Concern” on a cover letter unless you have no other choice. Addressing your cover letter in such a vague, impersonal way shows you didn't spend any time researching the position, and isn't a good look for someone truly interested in a job.
Should I use dear in a cover letter?
The most professional salutation for a cover letter is “Dear.” Even an email cover letter should start with “Dear,” followed by the hiring manager's name and a colon or comma.
Do you put dear before to whom it may concern?
To properly punctuate this greeting, use Dear + Name, followed by a comma. There are several ways you can use this traditional greeting in correspondence. Make sure to capitalize the first letter of each word in the salutation “To Whom It May Concern.”