2019-04-17 00:47:02 H=(zz.net) [58.39.150.114]:56534 F=<ycak@zz.net> rejected RCPT <www@tycoplas.com>: Rejected relay attempt: '58.39.150.114' From: 'ycak@zz.net' To: 'www@tycoplas.com'
2019-04-17 00:53:00 H=(swkb.com) [114.96.248.15]:33272 sender verify fail for <hoia@swkb.com>: The mail server could not deliver mail to hoia@swkb.com.  The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.
2019-04-17 00:53:00 H=(swkb.com) [114.96.248.15]:33272 F=<hoia@swkb.com> rejected RCPT <biz@shinobe.my>: Sender verify failed
2019-04-17 01:03:31 H=(sdivm.net) [116.225.114.11]:61109 sender verify fail for <hysvkmtm@sdivm.net>: The mail server could not deliver mail to hysvkmtm@sdivm.net.  The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.
2019-04-17 01:03:31 H=(sdivm.net) [116.225.114.11]:61109 F=<hysvkmtm@sdivm.net> rejected RCPT <www@tycoplas.com>: Sender verify failed