When is an email to much, like lets say I write to my new boss to get my holidays approved (we have a workflow for this, but I wrote to warn him as he is not my boss yet) and he writes back to me that its approved and he has nothing against me going, then should I wrote back a “Thank You” or is this too much, after all he is doing his job.
Sometimes I think of writing back then think it might be annoying, when do you know that now its time to stop an email communication.
If it was an IM communication, I would just write "Thank you". But in case of e-mail, I wouldn't. I would just say "Thank you" when I see him in the office. Face-to-face.
Re: Email communication in office
Umer good suggestion.
but in general when to stop, as dont want to be annoyning to the other person, where as the person is expecting a thank you note from your side and u are thinking that it might be annoying. 
Re: Email communication in office
diff ppl have diff personalities. My boss would rather not have such formalities filling his inbox, I am the same way with my team.
So, you have to gauge his personality.
but better to be conservative, when us ee him thank him and say u did not want to fill his inbox with another email but did want to say thanks.
Re: Email communication in office
thanks X2
Re: Email communication in office
If someone does something routine in the office , like approving my vacation, giving me a bonus, sending me the routine report I do not thank and I do not expect thanks either. But if someone does some extra favor , like sitting late to complete a report , cancel their vacation to complete a project, bring some mithai from India when they come back I give them a warm thank you.