Fix Smtp Error 451 4.1.8 (Solved)Home > Smtp Error > Smtp Error 451 4.1.8
Smtp Error 451 4.1.8
please provide feedback with your problem...Clint Boessen MCSE, MCITP: Messaging L7 Solutions, Microsoft Gold Partner Perth, Western Australia Proposed as answer by Clint BoessenMVP Sunday, March 01, 2009 7:03 AM Sunday, Yes, my password is: Forgot your password? Discussion in 'E-mail Discussions' started by bsasninja, Apr 26, 2007. Some servers (Like mine and most admin I know) check to make sure that your email server has a reverse lookup zone defined, this is to ensure that you are who Check This Out
Posts 1,295 I suspect the rDNS setting hasn't gone through, try the following site to test it, I don't believe they cache results http://remote.12dt.com/ Reply With Quote 0 06-17-2009,07:57 First, dns zone info is not propagated instantly. What do you think? Code: 1798 SMTP<< 220 ESMTP 1798 SMTP>> EHLO secure2.xtremewd.com 1799 SMTP<< 220 ESMTP 1799 SMTP>> EHLO secure2.xtremewd.com 1798 SMTP<< 250-sl-mail-0001.sb.am....t.ro Hello 126.96.36.199.tailormadeservers.com [188.8.131.52] (may be forged), pleased to meet you 1798 http://serverfault.com/questions/415402/451-4-1-8-domain-of-sender-address-does-not-resolve
I'll appreciate any advices. This is the best signature in the world....Tribute! (It is not the best signature in the world, no. Display an xkcd How to explain centuries of cultural/intellectual stagnation?
- No MX in the reverse lookup zone...
- Reply With Quote 0 06-17-2009,05:52 PM #11 RandomThoughts View Profile View Forum Posts View Forum Threads Visit Homepage Web Hosting Master Join Date Jan 2004 Location South East U.K.
- The [email protected] is receiving emails from other locations very well, but I cant send to it at any way.
- eFax Connecting to a Wireless Network Video by: Zia Viewers will learn how to connect to a wireless network using the network security key.
- Now I have changed the PTR from 184.108.40.206.tailormadeservers.com to secure2.xtremewd.com (this is the hostname of my server) I belive intoDNS caches results for some time because I tried to check again,
- is setup to hit our filters. receiving from that specific domain that i have issues with is no problem, receiving is great, sending is an issue. did i manage to
- Apparently, the remote mail server is not getting an answer, either because no entry exists (most likely...), or because there is some other problem with DNS resolution from that server. 0
Your server can't reach craigminch.com. If it is a shared mail server used by other clients such as you, then they will not be willing to change the PTR (rdns) record to satisfy your request. "Even Managed Cloud Servers Server Management and Monitoring 24x7 outsourced customer support Reply With Quote 0 06-17-2009,11:21 AM #3 ovisopa View Profile View Forum Posts View Forum Threads Visit Homepage Must I add an MX record to my reverse zone?
Dns setup is ok with no erros at dnsreport. I ultimatly added "FEATURE(accept_unresolvable_domains)" to my "/etc/mail/freebsd.mc". Why is the size of my email so much bigger than the size of its attached files? Not the answer you're looking for?
Solved 451 4.1.8 Domain of sender address does not resolve Posted on 2004-12-03 Networking DNS 2 Verified Solutions 22 Comments 22,359 Views Last Modified: 2012-06-27 All: When some users in my Suggested Solutions Title # Comments Views Activity On my WHOIS, who is [email protected]? 7 36 38d Not able to ping the servers - request time out 10 75 31d Bridging VLAN A reverse lookup is done on the SMTP client's IP address to make sure that it resolves back to an FQDN. It comes from a different check, one that tries to eliminate spoofed/bogus From: addresses by doing a normal (A or MX) DNS lookup on the domain portion of the address.
If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.Would you like to participate? https://internetworkconsulting.wordpress.com/2009/05/14/smtp-error-451-4-1-8-domain-of-sender-address-does-not-resolve/ Let me repeate that along with command-string nslookup we can use http://www.kloth.net/services/nslookup.php to check our zone via DNS server in doubt. 0 LVL 2 Overall: Level 2 Message Author Comment http://support.microsoft.com/default.aspx?scid=kb;en-us;174419 3. Join & Ask a Question Need Help in Real-Time?
The PTR record for that mail server does not match mail.a.....ro; many receiving mail hosts will flag that as a problem, some will outright reject you. his comment is here I think nothing can be done to fix that on your side. SupportExpertz.com - the name says it all! xxx 86400 IN PTR mail.domain.com. 0 LVL 2 Overall: Level 2 Message Author Comment by:TheBrothaULuv2H82004-12-03 Thank you both for your help.
I was thinking this is a fetchmail error, but after I monitored the fetchmail with -v, I found it may be scalix smtp relay issue: fetchmail: SMTP> MAIL FROM:
in an active directory domain name Functional style exception handling Did I participate in the recent DDoS attacks on Dyn's DNS service? If this is the case, he might want to confirm that both the 'A' record and the 'MX' record exist, and if its an MS DNS, he might want to try Top mharizanov New user Posts: 4 Joined: 2010-06-09 13:26 Re: 451 4.1.8 Domain of sender address...
Didn't fix the problem.
I do host my own mail and DNS, we're running MS DNS. If you're interested in additional methods for monitoring bandwidt… Network Analysis Networking Network Management Paessler Network Operations Advertise Here 754 members asked questions and received personalized solutions in the past 7 Maybe a firewall issue? Join & Write a Comment Already a member?
Before posting, please read the troubleshooting guide. terremark.com. 300 IN MX 15 fldsmtpe02.verizon.com. Web Hosting Talk Newsletters Subscribe Now & Get The WHT Quick Start Guide! navigate here Mitt kontoSökMapsYouTubePlayNyheterGmailDriveKalenderGoogle+ÖversättFotonMerWalletDokumentBloggerKontakterHangoutsÄnnu mer från GoogleLogga inDolda fältSök efter grupper eller meddelanden Resources for IT Professionals Sign in United States (English) Brasil (Português)Česká republika (Čeština)Deutschland (Deutsch)España (Español)France (Français)Indonesia (Bahasa)Italia (Italiano)România (Română)Türkiye (Türkçe)Россия
Please contact your hosting provider or server provider to setup this. Next is to recompile the config. But the outbound mail configuration should have a hostname that matches the PTR record. "Even those who arrange and design shrubberies are under considerable economic stress at this period in history." PTR is the only type of record in a reverse zone. 0 LVL 8 Overall: Level 8 Networking 7 DNS 3 Message Assisted Solution by:Marakush2004-12-03 'PRT' record in your reverse
ce_logging If at first you don't succeed, bomb disposal probably isn't for you! ヅ Top DanCML Normal user Posts: 103 Joined: 2009-07-08 17:56 Re: 451 4.1.8 Domain of sender address... The outbound mail host *should* (I say *must*) have a PTR (rdns) record which matches the outbout mail host's hostname. Browse other questions tagged domain-name-system email postfix email-server email-bounces or ask your own question. If you like you can give them a vanity MX record - create an A record pointing to the mail exchanger, even if it is the same box.
share|improve this answer answered Aug 8 '12 at 9:39 Alex 5,92322143 1 it probably was, problem is solved now –user131368 Aug 10 '12 at 10:28 add a comment| Your Answer