Privacy Concerns from Misspelling an Email Address?
I'm in the process of deGoogling and also shoring up my email privacy, which means I'm hyper aware of mistakes I make, hence the stupid question:
I was testing something with Proton Mail and misspelled the domain—swapped the "r" with one of the neighboring letters.
I didn't get an email bounceback, which is fine, because you don't always get a bounceback anyway. But, should I be concerned that I might have just volunteered my email directly to some spam outfit?
The "wrong" domain is registered. I'm acutely aware that the misspelling being one letter away from "Proton" might be intentional to capture misspellings like the one I made. Also, the wrong domain seems to be associated with oopatet.com and trellian.com, which are blocked by ublock.
Is there anything I should do from a privacy perspective?
Or is this a non-issue?
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Lack of an MX record would normally cause the sending mail server to generate an NDR with something along the lines of "bad domain." If the sending server attempted to make an SMTP connected to the A record IP, and then there was no response there, I would expect that sending server to generate a similar NDR.
There are legitimate reasons not to send an NDR for undelivered mail. Invalid address (at a valid domain) would be one; this avoids backscatter and footprinting of valid addresses at a domain with brute force random recipients.
There appears to be one:
https://mxtoolbox.com/SuperTool.aspx?action=mx%3aptoton.me&run=toolpage
So one of several things happened when you sent that mail: