Helo命令被拒绝:需要标准主机名错误
我的邮件服务器被列入垃圾邮件黑名单。我重新配置后缀。然后,我的客户收到此错误,他们无法发送电子邮件。 404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need fully-qualified hostname 在Mail.log中: postfix/smtpd[9853]: NOQUEUE: reject: RCPT from unknown[xx.xx.xx.xx]: 404 4.5.2 <PLLAMNAZIFE>: Helo command rejected: need fully-qualified hostname; from=<info@domain.com> to=<mail@mail.com> proto=ESMTP helo=<PLLAMNAZIFE> 在我的main.cf中: # rules restrictions smtpd_client_restrictions = permit_sasl_authenticated smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_sender_restrictions = smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unauth_pipelining, reject_non_fqdn_recipient, …