Can someone tell me what these two different errors mean? Are these spammers trying to send mail using a script or an email client?
Most of the errors above are have foreign hostnames from countries like thailand, japan, england, taiwan. They are US based and only deal with US based clients. Is this a spammer tryign to send mail through their account?2006-12-14 07:18:16 H=(61-59-188-119.adsl.static.seed.net.tw) [184.108.40.206] F=<[email protected]> rejected RCPT <[email protected]>: Sender verify failed
2006-12-14 06:49:40 H=(KD125054027172.ppp-bb.dion.ne.jp) [220.127.116.11] F=<[email protected]> rejected RCPT <[email protected]>: Sender verify failed
2006-12-14 07:41:33 1Guptx-000B6m-6e H=(18.104.22.168.broad.wz.zj.dynamic.163data.com.cn) [22.214.171.124] F=<[email protected]> rejected after DATA: syntax error in 'From:' header when scanning for sender: domain literals not allowed in "" Roberts" <[email protected][VAR999.0]>"