Interesting. I’m a hiring manager, and I’ve seen many cover letters that actually hurt the candidate because they have typographical errors, poor grammar, or are addressed to a different organization entirely. Probably 85% of cover letters I see do no harm; most of the rest hurt the candidate. The way you’re describing a cover letter sounds like it would be beneficial, but I don’t see ones like that very often. I definitely would appreciate that you took the time to tailor it to us.
My advice for everyone is, if you’re going to write a cover letter, proofread it just like the resume. If you’re short on time, focus on the resume and skip the cover letter (if you can - they might be required for some applications). I definitely notice a sloppy cover letter, so not having a cover letter will hurt far, far less than a sloppy one.
I wouldn’t toss someone’s application just because their cover letter had a typographical error in it, especially if the candidate is otherwise well qualified. But, if I’m borderline on whether I want to interview someone, and the cover letter is sloppy, I’m probably going to pass. We’re pretty detail-oriented, and a sloppy cover letter makes me worry about the details.
Yeah, I hear that…but you’d be surprised at how often I see perfectly-rendered resumes, and then multiple obvious issues in a cover letter.
The cover letter helps you get the interview - after I make the decision (offer or not), I pretty much forget about the cover letter.