Sorry, I meant a header as in where the things like the subject line, servers it was sent via, etc. are stored. It’s a part of the email that isn’t user-visible. The unsubscribe email isn’t visible to the user unless you view the raw source of the email, but email clients can use it.
I know marking as spam isn’t the same as unsubscribing. Gmail is trying to suggest unsubscribing instead of marking as spam which is reasonable (why mark it as spam when you could just unsubscribe and never get it in the first place?)
You mark it as spam so that Google can add it to the metrics and stop allowing that account to spam everyone. If you just unsubscribe it only benefits you. If you flag it as spam it benefits everyone using the service.
Technically there’s no authority to determine if you ever did “opt in”, so that is a moot point. I get spam all the time claiming I opted in, when I know I’ve not. Nothing in an email is a guarantee, to include statements that you wanted this email or agreed to be contacted.
Sorry, I meant a header as in where the things like the subject line, servers it was sent via, etc. are stored. It’s a part of the email that isn’t user-visible. The unsubscribe email isn’t visible to the user unless you view the raw source of the email, but email clients can use it.
I know marking as spam isn’t the same as unsubscribing. Gmail is trying to suggest unsubscribing instead of marking as spam which is reasonable (why mark it as spam when you could just unsubscribe and never get it in the first place?)
You mark it as spam so that Google can add it to the metrics and stop allowing that account to spam everyone. If you just unsubscribe it only benefits you. If you flag it as spam it benefits everyone using the service.
Technically it’s not considered spam if you opted in. Spam is unsolicited mail.
Technically there’s no authority to determine if you ever did “opt in”, so that is a moot point. I get spam all the time claiming I opted in, when I know I’ve not. Nothing in an email is a guarantee, to include statements that you wanted this email or agreed to be contacted.