A letter of indemnity, in simple terms:
- Is sent to a 2nd party, to set an agreement
- That the 1st party (the one that sends the letter) OR both parties
- Is/are protected by: the losses, damages risks, liabilities, vulnerabilities, etc that may come up as part of the agreement
To put it another way: a letter of indemnity is there to protect one/both parties in an event in which a breach/delinquency takes place.