Not trying to be rude, but If you put your unsubscribe page behind a captcha I am going to mark you as spam and move on.

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AdamN 2 days ago | parent [-]

I don't unsubsubscribe unless I explicitly subscribed in the past. If I did not subscribe in the first place then it's spam (exception for small businesses who may not know better in which case I'll delete or unsubscribe).

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kstrauser 7 hours ago | parent | next [-]

I'll try unsubscribing once if it looks like a legitimate org, like someone I actually did business with but didn't expect them to email me. After that, it's going to the junk box to train the server what spam looks like.

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sam_lowry_ 2 days ago | parent | prev [-]

There are unsubscribe headers that are used by mail user agents like mutt to unsubscribe from mailing list managers like mailman.

These are "scanner-proof" so far but support in clients like Outlook or Gmail is non-existent.

	▲	chuckadams 8 hours ago \| parent [-]
		Gmail not only understands the List-Unsubscribe header, it requires it for bulk deliverability.