xxx@prideglobalinc.com 於 2007/7/10 下午 12:52 收件者的電子郵件伺服器發生了 SMTP 通訊問題。請連絡您的系統管理員。 <dns.strength.com #5.5.0 smtp;550 No Such User Here>
xxx@prideglobalinc.com 於 2007/7/10 下午 12:52 收件者的電子郵件伺服器發生了 SMTP 通訊問題。請連絡您的系統管理員。 <dns.strength.com #5.5.0 smtp;550 No Such User Here>
xxx@prideglobalinc.com 於 2007/7/10 下午 12:52 收件者的電子郵件伺服器發生了 SMTP 通訊問題。請連絡您的系統管理員。 <dns.strength.com #5.5.0 smtp;550 No Such User Here>
想請問是什麼原因??
至於他寫說 No Such User Here，但這些信件也不是第一次寄的，有時可以成功，有時沒辦法寄出去，所以很困擾，不知道要如何查起??
系統是 Exchange mail
ps.
之前有去dnsstuff.com查，出現此訊息 ------------------------------------------------------------------------------------ E-mail Tester results for xxx@prideglobalinc.com Getting MX record for prideglobalinc.com (from local DNS server, may be cached)... Got it! mail.prideglobalinc.com. 10 210.245.22.32 [VN] Step 1: Try connecting to the following mailserver: [ERROR: A CNAME appeared in the MX records; this is not valid (per RFCs 974 "Minor Special Issues" section, and 1034 section 3.6.2. Mailservers are not required to send E-mail to mail.prideglobalinc.com. ] CNAME(s) I found are: [mail.prideglobalinc.com. CNAME isp-webmail.hcm.fpt.vn.] mail.prideglobalinc.com. - 210.245.22.32 Step 2: If still unsuccessful, queue the E-mail for later delivery.
------------------------------------------------------------------------------------ DNS Lookup: mail.prideglobalinc.com MX record How I am searching: Searching for mail.prideglobalinc.com MX record at d.root-servers.net [128.8.10.90]: Got referral to H.GTLD-SERVERS.NET. (zone: com.) [took 47 ms] Searching for mail.prideglobalinc.com MX record at H.GTLD-SERVERS.NET. [192.54.112.30]: Got referral to dns2.hcm.fpt.vn. (zone: prideglobalinc.com.) [took 130 ms] Searching for mail.prideglobalinc.com MX record at dns2.hcm.fpt.vn. [210.245.31.10]: Got CNAME of isp-webmail.hcm.fpt.vn. and referral to i.root-servers.net [took 718 ms] Searching for isp-webmail.hcm.fpt.vn MX record at j.root-servers.net [192.58.128.30]: Got referral to NS-VN.RIPE.NET. (zone: vn.) [took 162 ms] Searching for isp-webmail.hcm.fpt.vn MX record at NS-VN.RIPE.NET. [193.0.12.241]: Got referral to DNS2.fpt.vn. (zone: fpt.vn.) [took 125 ms] Searching for isp-webmail.hcm.fpt.vn MX record at DNS2.fpt.vn. [210.245.0.10]: Reports that no MX records exist. [took 283 ms] Response: No MX records exist for isp-webmail.hcm.fpt.vn. [Neg TTL=3600 seconds] Details: DNS2.fpt.vn. (an authoritative nameserver for hcm.fpt.vn.) says that there are no MX records for isp-webmail.hcm.fpt.vn. The E-mail address in charge of the hcm.fpt.vn. zone is: administrator@hcm.fpt.vn. NOTE: One or more CNAMEs were encountered. mail.prideglobalinc.com is really isp-webmail.hcm.fpt.vn. There is no need to refresh the page -- to see the DNS traversal, to make sure that all DNS servers are reporting the same results, you can Click Here. Note that these results are obtained in real-time, meaning that these are not cached results. These results are what DNS resolvers all over the world will see right now (unless they have cached information).
