Solusi Email : Client host rejected: cannot find your hostname – Cpanel

August 10, 2020August 10, 2020admin

Problem :

2020-08-10 09:58:02 1k4y0a-000403-P8 ==xx@tx.com.tw R=dkim_lookuphost T=dkim_remote_smtp defer (-44) H=tun.com.tw [211.75.174.145]: SMTP error from remote mail server after RCPT TO:x@xxx.x: 450 4.7.25 Client host rejected: cannot find your hostname, [175.x.x.x]
2020-08-10 09:58:02 1k4y0a-000403-P8 ** x@x.com.tw: retry timeout exceeded