最佳解答者
550 inconsistent or no DNS PTR record for

問題
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I've found a problem for sending an email to other. It comes out the following error message:
email.abc.com #5.5.0 smtp;550-Inconsistent or no rDNS record for 123.123.123.58 (see RFC1912 2.1)
I had checked with some rDNS website of 123.123.123.58. It do have rDNS of this IP.
Can anyone of you help me to solve this problem?
Thank you very much.
解答
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Hi Jason,
As you described, you mean only some part of clients can’t receive email from your exchange, not all, right? Then I believe the exchange server works well, DNS is point.
Please make sure the client can reserve IP address of you exchange server, this action might involve ISP.
- 已標示為解答 Richard Wang - MSFT 2010年9月10日 上午 02:24
所有回覆
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Dear Jason,
Did you use nslookup 123.123.123.58 to reserve the domain ?
firstly, you should confirm that you can connect to the 123.123.123.58, then you can try to telnet the port 25 of the remote server.
If failed, the third party anti-virus of firewall might caught the problem.
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Hi epsilon_111508,
Thank you for your help.
I had confirm I can connect 123.123.123.58 by using telnet. "mail from" and "rcpt to" are success too.
I had tried send a email to my gmail account, then I view the source code of this testing email. The sender can show 123.123.123.58. But I just wondering the client who cannot receive our email is the rDNS show 123.123.123.61.
We are using Echange 2003 Std ver. one Front End and one Back End server. Both of these two servers are behind ISA server. And we had few fix IP too. 123.123.123. 57 ~ 62.
Hope this information can let anyone of you can understand more about my question.
Sorry for my poor presentation.
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Hi Jason,
As you described, you mean only some part of clients can’t receive email from your exchange, not all, right? Then I believe the exchange server works well, DNS is point.
Please make sure the client can reserve IP address of you exchange server, this action might involve ISP.
- 已標示為解答 Richard Wang - MSFT 2010年9月10日 上午 02:24