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| XMail Forum > Documentation and Knowledge Base > Error sending to one Domain |
| Posted by: nick Nov 5 2003, 09:07 AM |
| I am getting mail rejected from one Domain, Can someone tell me if it is a DNS error or a Mail From syntax error or both, this seems the only Domain I cant send to, even AOL and Hot Mail are accepting mail from my server, Thanks -------------------------------------------------------------- ErrCode = -5 ErrString = Timeout error SMAIL SMTP-Send MX = "mail.nslm.co.uk." SMTP = "mail.cobranetworks.net" From = "keith@intis.co.uk" To = "kathy@nslm.co.uk" Failed ! SMTP-Error = "417 Temporary delivery error" SMTP-Server = "mail.nslm.co.uk." >> << ErrCode = -81 ErrString = [MAIL FROM:] not permitted by remote SMTP server ErrInfo = 451 4.1.8 Domain of sender address keith@intis.co.uk does not resolve SMAIL SMTP-Send MX = "smtp.netreach.co.uk." SMTP = "mail.cobranetworks.net" From = "keith@intis.co.uk" To = "kathy@nslm.co.uk" Failed ! SMTP-Error = "451 4.1.8 Domain of sender address keith@intis.co.uk does not resolve" SMTP-Server = "smtp.netreach.co.uk." >> |
| Posted by: atomant Nov 5 2003, 09:41 AM |
| There is a problem with DNS MX entry. Look how it is formed: mail.nslm.co.uk. the last dot is invalid. It should be: mail.nslm.co.uk This is not xmail problem. |
| Posted by: nick Nov 5 2003, 10:21 AM |
| Thanks Atomant, I thought the error looked like the recipients mail server was saying there was an error with a zone on my name server, Is it possible you could explain the error to a DNS and Xmail Noob Ta. |
| Posted by: atomant Nov 5 2003, 10:26 AM |
| Well I am no expert in DNS. I just know some basic stuff. |
| Posted by: MayVortex Nov 5 2003, 01:50 PM | ||||
The last dot is valid 
Not XMail problem. This is the revers zone problem. Some mail servers try to resove from IP to HOST, and from HOST to IP. If U don't have reverse DNS zone, the mail server can't resolv your HOST name. Try: nslookup your.ip.xx.xx - OK? try again, but from http://www.all-nettools.com/tools1.htm (NSLookUp: your.ip.xx.xx) - do U see your hostname? Reverse zone can be delegated by your ISP. |
| Posted by: nick Nov 5 2003, 09:53 PM |
| Yes my IP does resolve to my domain, but not to my client’s domain, this seems to be the norm out there so far as I can see, There does seem to be a problem with the first MX for the recipients Domain, seems not to be available. Regards. |
| Posted by: nick Nov 5 2003, 10:23 PM |
hmm i do have a rev dns problem,  |