# Blocking e-mail address from other's address book

**URL:** <https://boards.straightdope.com/t/blocking-e-mail-address-from-others-address-book/615286>\
**Category:** Factual Questions\
**Created:** [March 9, 2012, 4:17pm UTC](https://boards.straightdope.com/t/blocking-e-mail-address-from-others-address-book/615286 "2012-03-09T16:17:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Mangosteen](https://avatars.discourse-cdn.com/v4/letter/m/6a8cbe/32.png) [@Mangosteen](https://boards.straightdope.com/u/Mangosteen)\
**Post date:** [March 9, 2012, 4:17pm UTC](https://boards.straightdope.com/t/blocking-e-mail-address-from-others-address-book/615286/1 "2012-03-09T16:17:31Z")

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A friend of mine asked me if it were possible to block her e-mail address from being automatically “captured” by the recipient’s e-mail system. I see that when ever someone e-mails me, they are automatically placed in my e-mail address folder

Can this be done?

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**Author:** ![yoyodyne](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yoyodyne](https://boards.straightdope.com/u/yoyodyne)\
**Post date:** [March 9, 2012, 6:06pm UTC](https://boards.straightdope.com/t/blocking-e-mail-address-from-others-address-book/615286/2 "2012-03-09T18:06:59Z")

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No, but she could use a throw-away account or address spoofing software.

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [March 9, 2012, 6:16pm UTC](https://boards.straightdope.com/t/blocking-e-mail-address-from-others-address-book/615286/3 "2012-03-09T18:16:38Z")

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Sure.  
Just spoof the return address.  
Most email client’s only capture the return address, not the actual sender’s address in the email headers.