Mailing Letter of Recommendations Myself

[dreamingotter]

Is it illegal for me to mail my own letter of recommendation under the letter-writer's name and address?

I am filling out a bunch of applications and I feel bad about asking the letter writer to mail out so many copies. I have an electronic copy of the letter the recommender sent me (they were ok with me seeing the content of the letter).

[PsyDuck90]

Typically, if letters are sent by actual mail, there needs to be a signature or stamp on the fold to show that it has been sealed. You can manually address and stamp the envelopes and provide them to your letter writers if you would like. Most programs allow for electronic submissions for LORs. The letter-writer is emailed a link where they upload the pdf. 

[dreamingotter]

For a lot of the applications I am working on, I have to mail in physical copies. I live far away from my letter writers, so it's kind of difficult for me to physically hand them the envelopes

Should I just ask them to mail them one by one?

[howdoiexitvim]

I never had a professor consider it a chore to send out the letters of recommendation, either by mail or online.  I'd say don't risk being suspected for fraud and put your applications at risk for this. Ask your professors.