Apology letter for sending wrong mail

Here is a sample apology letter for sending a wrong mail:

[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date]

[Recipient's Name] [Recipient's Address] [City, State, ZIP]

Dear [Recipient's Name],

I am writing to express my sincerest apologies for sending you a wrong mail on [Date of Sending]. I understand that receiving a mail intended for someone else can be frustrating and inconvenient, and for that, I am truly sorry.

I take full responsibility for the mistake and assure you that it was not intentional. Unfortunately, an error occurred during the processing of the mail, resulting in the wrong address being attached to the package. I want to assure you that I am taking immediate action to rectify the situation and prevent such mistakes from happening in the future.

I would like to request your understanding and cooperation in this matter. If you could please return the wrong mail to me, I will ensure that it is properly addressed and resent to its intended recipient. If you have already opened or used the contents of the mail, please let me know and I will make arrangements to provide a replacement or refund as necessary.

Once again, I apologize for the inconvenience and distress caused by my mistake. Please know that I value our relationship and appreciate your understanding in this matter. If you have any questions or concerns, please do not hesitate to contact me.

Sincerely,

[Your Name]

CC: [Your Supervisor/Manager's Name] (if applicable)

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