| Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | Cris79esti | 8/2/12 10:24 PM | I have a website (not a Postini user) and Postini clients can't email me saying that they get an error "Postini #550 Neither MX nor MTA found for domain:http://commercialflooringestimating.com - psmtp ##" The other user is a Postini user, saying his mail |
| Re: Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | FrankM TC/Reseller | 8/3/12 8:32 AM | - 550 Neither MX nor MTA found for domain: - psmtp"This error is returned when the MX record lookup returned no MX records and the message security service was able to resolve the domain to an A record, but the attempt to connect to the IP address in |
| Re: Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | Cris79esti | 8/3/12 8:49 AM | Hi Frank,Based on your response, I am still confused as to which IT guy should correct this error. (My IT guy or the IT guy using Postini that can't send messages to me?) What exactly needs to be corrected? Thank you so much for your help. |
| Re: Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | FrankM TC/Reseller | 8/3/12 9:45 AM | It could be both, depending on your potential DNS issues. For one, you only have one MX, as you should at least have two on different IP netblocks. However, this is an inherent issue with most web host providers. Try changing your MX TTL = Time to Li |
| Re: Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | Cris79esti | 8/3/12 10:03 AM | Postini keeps saying there are no MX Records, but this tool says there are : http://www.mxtoolbox.com/SuperTool.aspx?action=mx%3acommercialflooringestimating.com And even all the MX related info on this site looks good : http://www.intodns.com/c |
| Re: Postini #550 Neither MX nor MTA found for domain ..com psmtp ## | FrankM TC/Reseller | 8/3/12 11:24 AM | Did you read the whole answer I gave? The error message was available in the help guide documentation and gave insight on what was going on, however you are not a Postini customer. Nonetheless, you came to the user forum and was provided additional i |