Dear friends, clients, colleagues and partners
I am leaving [name of company] on [date] to [what you’re doing on your career break].
I’ll be [re-training/doing another job] until [month/year]. When I’ve [finished/returned] I’m going to be looking for a new job in [your new industry]. If you know anyone who is in [your new industry], please let me know.
If you’d like to stay in touch, my personal email address is [name of email address].
Kind regards [or however you usually sign off]
[your name]