1. whois
@4000000065a0a1f52917c874 info msg 3159: bytes 249348 from <bounce-95112_HTML-1407571333-152827-514029318-163516@bounce.s11.mc.pd25.com> qp 27097 uid 1002
@4000000065a0a1f5294c597c starting delivery 5600: msg 3159 to remote maenotoshinori@gmail.com
@4000000065a0a1f5294c5d64 status: local 0/10 remote 2/20
@4000000065a0a1fc2505d244 delivery 5599: failure: 142.250.141.26_failed_after_I_sent_the_message./Remote_host_said:_550-5.7.26_The_MAIL_FROM_domain_[reg65465g4h.com]_has_an_SPF_record_with_a_hard/550-5.7.26_fail_policy_(-all)_but_it_fails_to_pass_SPF_checks_with_the_ip:/550-5.7.26_[14.192.44.5]._To_best_protect_our_users_from_spam_and_phishing,_the/550-5.7.26_message_has_been_blocked._For_instructions_on_setting_up_authenticat/550-5.7.26_ion,_go_to/550_5.7.26__https://support.google.com/mail/answer/81126#authentication_l189-20020a6325c6000000b005cdfbc06d8esi2347068pgl.498_-_gsmtp/
2. history
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