Hi all, I didn't read news about it, but I see bogus "550 Invalid domain" replies to MAIL FROM from many IP/domains when sending email to libero.it since 11/2/2026 16:00 CET (the transaction hangs some seconds in the mail from and then returns the invalid domain error).
I confirmed the issue also sending from a consumer gmail inbox: I got a bounce "550 Invalid domain". Their status page doesn't say anything, their X page neither: do you also see this error? https://status.libero.it/ Libero.it is the main Italian inbox provider and this applies to other ItaliaOnLine domains (virgilio.it, blu.it...). -- Stefano Bagnara Apache James/jDKIM/jSPF VOXmail/Mosaico.io/VoidLabs
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