On 14/10/14 00:47, Joel Rees wrote:
There is a header for requesting automatic confirmation of delivery, but it tends to be abused by malicious junkmailers (spammers). MUAs are supposed to be able to disable it, but I haven't seen that option in an MUA settings dialog for a long time.
I'm looking at a configuration dialog for handling emission of return receipts in Icedove right now (offering an option of "absolutely never", or alternatively a three-way distinction between categories of messages which can be set to "never", "ask me every time", and "always").