A few years ago I had some problems with my credit report being corrupted with incorrect data. The official mechanism for correcting errors is to file a dispute for one item, wait for something like 30 days while they review it, then you can file another dispute. In my case there were more than a dozen errors (including bullshit like an alternate SSN, alternate birthday, etc.). I did some digging on the internet and found out an alternate method, which is to print out your credit report, make note of all the disputed items, add a cover letter and any supporting evidence, then send it via certified mail to a secret PO Box you can't find on any of the credit reporting agencies' websites. It worked like a charm.

How does one cc a letter?

cc stands for "carbon copy", which was a mechanism for hard copy letters.

I thought the point of "cc" on an email was to prove you've sent something to someone.

How can you achieve the same with a letter?

I can obviously just write the same letter twice and send it to two different places, but neither will know the other was also sent the same thing.

> I thought the point of "cc" on an email was to prove you've sent something to someone.

It doesn't prove anything, but it does provide notice.

> How can you achieve the same with a letter?

On a letter, you can acheive the same thing that cc: <email address> does on an email by putting cc: <recipient name> on the bottom of the letter, after the signature line, and then making identical copies of the letter and setting to both the addressee and the other recipient named in the cc: notation.

Which is the practice that inspired the use in email.

This is a fascinating thread. I wonder if formal letter writing is still taught in grade school?

No but it was practice to put CC: Name at the bottom of the letter