PH01 usually means a url in your message is listed on SURBL. Just happened to us last week.
On Thu, Dec 2, 2021 at 7:51 PM Luke via mailop <mailop@mailop.org> wrote: > PH01 is their phishing rejection. They see something they don't like in > one of the URIs. They usually fix these false positives pretty quick if you > submit a ticket here > <https://urldefense.com/v3/__https://io.help.yahoo.com/contact/index?page=contactform&locale=en_US&token=Zh*BBVqXzLHlIbokbUqVWTUbuuQeXGkGnZzhKR2JQ4O6mMQdy9JSWdtWFXvjthcYCRj9bUIFfycOfG*4GOHPHoOGa8HwDO2*0kYRtTcdR8O13Mvs9cOruJ0TlC3hh4bCEtPlZ0yk7fvp1MFjGnAOWw==&selectedChannel=email-icon__;Lysr!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1NgNaZLYT$> > . > > On Thu, Dec 2, 2021 at 7:16 PM John Levine via mailop <mailop@mailop.org> > wrote: > >> An IETF friend of mine is trying to set up a personal domain at hosting >> company Pair. >> >> When he sends mail to a verizon.net >> <https://urldefense.com/v3/__http://verizon.net__;!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1NsUzz0OK$> >> recipient, which is hosted at AOLYahoo, it rejects >> it after data with >> >> 554 Message not allowed - [PH01] Email not accepted for policy >> reasons. Please visit https://postmaster.yahooinc.com/error-codes >> <https://urldefense.com/v3/__https://postmaster.yahooinc.com/error-codes__;!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1NqzXnix-$> >> (in >> reply to end of DATA command) >> >> These are low volume personal messages. His domain housley.us >> <https://urldefense.com/v3/__http://housley.us__;!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1NvQL-tk-$> >> was registered two >> years ago but I don't think has been used for mail before. I looked at >> Pair's outgoing >> mail to my system which looks quite clean, and he says other people can >> send from Pair >> to Yahoo, so my guess is that it doesn't like getting mail from new >> domains, even at >> low volume. >> >> Any suggestions? Pair's support has no ideas. >> >> R's, >> John >> _______________________________________________ >> mailop mailing list >> mailop@mailop.org >> https://list.mailop.org/listinfo/mailop >> <https://urldefense.com/v3/__https://list.mailop.org/listinfo/mailop__;!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1Nkq_80Gl$> >> > _______________________________________________ > mailop mailing list > mailop@mailop.org > > https://urldefense.com/v3/__https://list.mailop.org/listinfo/mailop__;!!JIZ-LZtDGnv5HBqN_A!eRjNF9x4JN0uZMU8mAb_I4oh0ltpk8OQPDJ7B28y7OBUFRphoYNj6fYBGzO1Nkq_80Gl$ > -- Thanks, Alex -- Alexander Burch ActiveCampaign / Senior Deliverability Engineer abu...@activecampaign.com 1 North Dearborn St Suite 500, Chicago IL, 60602 <https://www.facebook.com/activecampaign> <http://www.twitter.com/activecampaign> <https://www.linkedin.com/company/activecampaign-inc-> <https://plus.google.com/107063868317743606466> <https://www.activecampaign.com/sig/?u=aburch&c=1>
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