Here are some points to note regarding the mode of communication of your resignation:

1. A verbal resignation is always difficult but if you have shared an open relationship, your superior(s) will probably respect a verbal resignation more.
2. You should rehearse what you want to say and then make sure it doesn’t sound rehearsed when you say it. It is important to choose your words carefully. Don’t give too much information and don’t try to justify your move to the extent that your relationship with the employer turns sour.
3. A verbal resignation must be supported with a letter or email that will go into your file, or you can simply submit a letter or email alone.
4. If you are going to submit a letter alone (in print or by mail), you must be very cautious about explaining the circumstances (if at all you need to explain them). What you write because that letter will remain on your file for years to come. So, don’t be negative in any way.
5. Make sure that the resignation is received by your boss as well as the HR manager. If in print, make multiple copies and send it to both. If on e-mail, mark a carbon-copy to the HR manager.
6. You must extract and keep an acknowledgement of receipt of your resignation letter in print or by e-mail. You never know when things may turn awry and it’s always good to have an acknowledgment of your resignation on record.