Does Gmail (and other mail services) send a pingback/response to the sender, when I hit "Mark spam"?
We send out email via our own SMTP server. Is there a way to make Gmail (and others) send some kind of pingback or response, if receivers mark our mail as spam?

Is this even a feature provided by Gmail/Hotmail etc?
Does Gmail (and other mail services) send a pingback/response to the sender, when I hit "Mark spam"?
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We send out email via our own SMTP server. Is there a way to make Gmail (and others) send some kind of pingback or response, if receivers mark our mail as spam?

Is this even a feature provided by Gmail/Hotmail etc?