However, some people may have inboxes that require a week to manage after vacation. Others do not read all the emails sent in this period. In these special cases, indicate when the reader should actually expect a response or request they re-send their email on the return date.
Businesses can create offline messages in REVE Chat to keep their customers informed about their business hours and guide them towards getting a faster response.

I wouldn’t be offended or consider saying anything to anyone who included this in their out of office message, but even as someone who is in a religion that forbids use of electronics on most holidays, I still think this message is 1) TMI; 2) doesn’t convey what it needs to convey unless you are explaining that you don’t use electronics during holidays, in which case you can just include that you won’t be checking email without including the religious explanation; 3) would come across to me as inclusion of personal information I don’t need, which would therefore strike an unprofessional tone,and I wouldn’t understand why you felt the need to include that info. How about “I’m out of the office without access to internet or email until (date). If you need assistance before this date, please contact…” Like I said, I think your colleagues are overreacting, but in general I would advise to leave all personal information out of your auto-reply — vacation, medical leave, religious observance, etc. — people do not need to know why you are out.
So, here are seven various templates you can use. Feel free to copy and paste them, but it is highly encouraged to add something of yourself into these templates (I mean, tweak them according to your personality).