Almost as bad as the messages people send on LinkedIn.

Hello {firstName},
I have a position that would be a great fit for you!  It's a senior Android developer role based in London.  Must have 8+ years of experience.  Would you like to talk further?  Please send me your updated resume ASAP!
Sincerely,
friendly recruiter

copy paste copy paste copy paste even if you have no experience with Android development and aren’t based in the UK