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Postfix 3.1.6 rejects connection with the following message:
(host neko.exmple.jp[192.0.2.222] said: 450 4.7.25 Client host rejected: cannot find your hostname, [192.0.2.22] (in reply to RCPT TO command))
The text was updated successfully, but these errors were encountered:
src/smtpd/smtpd_check.c on Postfix 3.1.4
src/smtpd/smtpd_check.c
static int reject_unknown_client(SMTPD_STATE *state) { const char *myname = "reject_unknown_client"; if (msg_verbose) msg_info("%s: %s %s", myname, state->name, state->addr); /* RFC 7372: Email Authentication Status Codes. */ if (state->name_status != SMTPD_PEER_CODE_OK) return (smtpd_check_reject(state, MAIL_ERROR_POLICY, state->name_status >= SMTPD_PEER_CODE_PERM ? var_unk_client_code : 450, "4.7.25", "Client host rejected: cannot find your hostname, [%s]", state->addr)); return (SMTPD_CHECK_DUNNO); }
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Add status 4.7.25 (RFC-7372) as "blocked" #253
8c6eb33
We need a sample email including the status code.
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Postfix 3.1.6 rejects connection with the following message:
The text was updated successfully, but these errors were encountered: