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,
reject_unknown_recipient_domain,
permit_mynetworks,
reject_unauth_destination,
reject_invalid_hostname,
reject_non_fqdn_sender,
reject_unknown_sender_domain,
reject_rhsbl_client blackhole.securitysage.com,
reject_rhsbl_sender blackhole.securitysage.com,
reject_rbl_client zen.spamhaus.org,
reject_rbl_client bl.spamcop.net,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client proxies.blackholes.wirehub.net,
reject_rbl_client dnsbl.njabl.org
smtpd_helo_required = yes
unknown_local_recipient_reject_code = 550
disable_vrfy_command = yes
smtpd_data_restrictions = reject_unauth_pipelining