本地搭建的邮件服务器,前一段时间发信正常,最近几天无法发送,发现被拒了。
记录详情如下:
Dec 21 11:04:41 ossec postfix/smtp[24149]: 3C01DA0FE1: to=709227323-1@email.110monitor.com, orig_to=root@ossec.localdomain, relay=email.110monitor.com[115.28.252.224]:25, delay=411627, delays=411622/0.34/5.1/0.13, dsn=4.0.0, status=deferred (host email.110monitor.com[115.28.252.224] said: 451 4.0.0 Error processing message: Out of data at position 1 in ‘’ (in reply to end of DATA command))
请问如何处理?