an individual mail getting onto an blacklist is most often than not a dead sentence for the address, the domain and sometimes even the ip.
but if google is at fault and email get into a permanently removed bucket, like in this event, it's in the interest of the other to play nice and accommodate for the fault.
I think people severely underestimate how hard it actually is to consistently deliver email in 2020 between dkim, spf and domain keys while tiptoeing around everyone else ip/email antispam services.
and the weight of google as well!
an individual mail getting onto an blacklist is most often than not a dead sentence for the address, the domain and sometimes even the ip.
but if google is at fault and email get into a permanently removed bucket, like in this event, it's in the interest of the other to play nice and accommodate for the fault.
I think people severely underestimate how hard it actually is to consistently deliver email in 2020 between dkim, spf and domain keys while tiptoeing around everyone else ip/email antispam services.