Has anyone seen this before?
<sale-xxxxxxx@craigslist.org>:
xx.xx.xx.xx does not like recipient.
Remote host said: 554 <unknown[xxx.xx.xx.xx.xxx]>: Client host rejected: rDNS/DNS validation failed. Please setup matching DNS and rDNS records:
Giving up on xx.xxx.xx.xx.
We're running a Plesk Server with CentOS
I have a customer who is trying to send email to an email direction but it bounces back with an error like this:
SMTP error from remote mail server after RCPT TO:<bancaweb@credicoop.com.ar>:
host sas.credicoop.com.ar [200.47.24.10]: 450 4.7.1 Client host rejected:
cannot find your hostname, [64.76.xxx.xxx]: retry timeout exceeded
I know it has something about a reversal dns but how do i fix it?
I migrate from plesk 9.5 to another server with plesk 12.0.18, and then outlook and mail default from iphone don't work, but tunderbird and webmail work well.
In outlook when i put the same configuration than tunderbird and i try to send mail out from my domain said this error:
Error del servidor: '554 5.7.1 <244.Red-88-18-221.staticIP.rima-tde.net[88.18.221.244]>: Client host rejected: Access denied
I don't know if outlook is bad configuration but with plesk 9.5 worked well, and now nothing.
I can recive mail but not send.
We are getting 403 for bidden error when accessing from web clients.
Here are my config files:
httpd.conf & httpd-ssl.conf files:
1) [URL] ....
2) [URL] ....
Any changes we have to make in our configuration files.
Clearly a hosting company can choose whether to have a client forum or not, but do you think they should have one?
View 14 Replies View Relatedssh is driving me CRAZY right now... On an almost stock CentOS 5.1 install (inside a Xen VPS, though), I changed sshd to listen on 2222 instead of 22 and restarted sshd.
All of a sudden:
Code:
matt@t60:~$ ssh -p2222 64.191.108.xxx
ssh: connect to host 64.191.108.xxx port 2226: No route to host
I should note that I'm actively logged into that IP in another window, and that it responds to ping. There most certainly is a route. Yes, I've quadruple-checked that I have the right IP. And I use the -p2222 daily to connect to another machine. This is a virgin CentOS install; I just changed the "Port 22" line to "Port 2222" and restarted sshd (/etc/init.d/sshd restart).
I am not behind any sort of firewall, unless CentOS installs one that I don't know about. (I own the physical hardware, not just the virtual machine.)
I figured it had to do with this error in /var/log/secure
Code:
May 31 19:18:39 relay120 sshd[23359]: Server listening on :: port 2222.
May 31 19:18:39 relay120 sshd[23359]: error: Bind to port 2222 on 0.0.0.0 failed
: Address already in use.
So I changed (uncommented) the ListenAddress directive to:
Code:
ListenAddress 64.191.108.xxx
and restarted sshd again.
I checked the page on megaproxy and everything is fine, I checked it at my home, work, my brother checked it out of state.
BUT. At my client's house and also at my client's friend's house.... they are still getting a 403 page.
We moved the site to the new host yesterday around 2:00pm yesterday it is 10:27am And all my stuff seems to be updated...
Is this an ISP issue? is there anyway I can force a domain to clear cache? is this the problem?
Is there any service out there that provides a method for a registration to have phone activation codes? Basically the user would enter their phone number as part of a submission form, and the service would phone that number giving a code, then they have to enter that code to validate the rest of the process. Kinda like paypal.
Does anything like this exist, and is it affordable?
Captchas just don't cut it anymore, I'm thinking of consolidating all of my forums/services into one main account system, and use phone activation + a series of advanced captchas or something. This would also make it easier to ban as I would just perma ban the phone number too.
Any other idea to 1: stop bots, 2: perma ban someone? (need a unique piece of ID that can be validated)
The last 2-3 days my websites on my vps all started acting funny. Randomly throughout the day they will all just stop loading. If you go to one of my sites they will just load and load and load and eventually time out after 5 minutes.
To fix this problem, all I have to do is reset Apache in my WHM. Everything will be fine for awhile until it decides to stop loading again.
I've been talking to tech support for 2 days. They're out of options. They tried banning some IPs as they thought I might be getting hacked. They tried moving me to a different host machine. They've checked all my logs... there are no errors or problems with the vps. The server load is always very low. Memory is always very low.
I run about 15-20 websites on this VPS. Two of them are vbulletin (v. 3.6.4 and v3.6.8) and all the rest are wordpress).
My VPS is hosted with ServInt.
Server Version: Apache/1.3.39 (Unix) PHP/5.2.4 mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4
mysql (5.0.45-community-log)
I get these emails all day:
httpd failed @ Wed Jan 9 06:10:42 2008. A restart was attempted automagically.
I am completely out of ideas and options. Can anyone think of something? Think outside the box... make random suggestions. I don't care, I need to try something.
I most recently added 3 or so brand new websites to my vps about a week ago. However, they are just running wordpress so I can't imagine they're the problem.
i create one vps by xen/hypervm
and i going to ssh this vps
and i want install cpanel for this vps
but:
-bash-3.00# wget[url]
--21:44:11-- [url]
=> `latest'
Resolving layer1.cpanel.net... failed: Host not found.
I think this is related to rDNS.
[url]
If you take a look at URL above, the lookup for the IP leads to nsmx.net where as the lookup for nsmx.net leads to another IP.
The IP should resolve to host6.nsmx.net, how am i supposed to fix that?
i cant sent emails to Hotmail from my domains so make a Spam Database Lookup from dnsstuff for my main ip 72.249.101.164
here are the results
"72.249.101.164 has no reverse DNS entry; some mail servers may not accept your mail."
and i also not listed to any database.
Can someone check the and tell me if
- RDNS are ok
- and if this spam databases include Hotmai spam databases?
My hosting provider tell me that RDNS are ok and that Hotmail black listed the server IP
the smtp server have ptr/a records setup, smtp auth enabled, isn't on any blacklist and never was. when sending mails to certain recipients mail returns with 554 error stating the ip is blacklisted. the referencing ip is dynamic ip used by sender, not the server itself. i inspected the headers and server ip is listed in one of the from fields, the client ip is listed under another from fields.
how do i prevent this error from happening? i don't want to relay my smtp server which is perfectly fine to isp smtp server. why isn't the receiving smtp checking the last from field which is server's ip but instead bounce the message because the client is on dynamic ip?
if you have any solution, please share, regardless of the mta you're using. i'll make the appropriate changes in my configuration. i'm thinking it's not my fault but receiving smtp fault because i can send using the same configuration to some other recipients who have spamhaus checking enabled and everything works fine because the server checks on the my server ip and not on the client's ip.
I have Comcast Business PRO Internet service for work purposes. I've got two web/dns servers and two mail servers, each having their own IP. These are all fine.
There had been a couple situations in the past where I would receive a "Relaying Denied" message from my PINE when sending mail out. At examination of the maillog, It's essentially telling me that these messages are being generated because of the lack of reverse DNS.
xxx.xxx.xxx.xxx-Oregon.hfc.comcastbusiness.net., instead of my.domain.com.
I did a couple searches on Google, and read somewhere that Comcast is unwilling to create rDNS entries, but they've not specified, so far, whether they subscribe to PRO or residential service.
Before I spend 90 minutes on the phone with Comcast, I thought I'd see if anybody here has been successful with rDNS and Comcast PRO before. It seems to me that by denying this, it defeats the purpose of the "dedicated" service that I signed up with ...
2008-01-23 10:55:54 no IP address found for host srv.adwatcher4.com (during SMTP connection from [209.50.243.42])
2008-01-23 10:55:55 H=(srv.adwatcher4.net) [209.50.243.42] Warning: Sender rate 5.8 / 1h
2008-01-23 10:55:55 H=(srv.adwatcher4.net) [209.50.243.42] sender verify fail for <none@localhost>: Unrouteable address
2008-01-23 10:55:55 H=(srv.adwatcher4.net) [209.50.243.42] F=<none@localhost> rejected RCPT <me@mydomain.com>: Sender verify failed
I turned off Sender Verification while Sender Verification Callouts was already unticked, yet I still get the same error even with this in the ACL config:
accept domains = srv.adwatcher4.com
I was told by the data center NOC that I can manually handle rdns/ptr requests myself, as long I do the below.
Set up your name servers to respond to the reverse dns inquiries that we would forward to you.
Can anyone shed light on this? What if someone requests rdns on 32 IP's in one shot for example, how would you go about doing this?
I set rdns by contacting the dedicated server host. I am switching to a colo environment soon, do I still contact the ISP who issues the IPs for the rdns requests or can I set them myself somehow on my servers?
If I eventually get my own IPs through ARIN, how do I set rdns? Do I just get some script to set the PTR records on my own servers?
Im configured domainkey, spf and rdns exactly on my server, but my outgoing email to yahoo is spam too.
My sent email to yahoo (Header): ....
I have two ISP lines coming to my router which is connected to a Exchange mail server. Both ISP has given me dedicated IP addresses such as:
ISP1 = 217.105.25.94
ISP2 = 62.15.125.44
Now my ISP1 IP address has a reserve DNS set and when the mails are send via this line no problem, but my ISP2 IP does not have a reverse DNS so some mails are bouncing back due to the face the receiving mail server is checking the IP against the DNS.
How can I solve this issue, or normally who can set this rDNS?
Just got set up with a new VPS and while looking to see if my IPs were blacklisted, I came across a RDNS warning. I've been on some form of shared hosting since I've been on the Internet, so much of the VPS stuff is new to me (though it is managed). Everything I've read says that RDNS is important for sending mail so the receiving end can verify where mail is coming from, but I thought I would ask here regarding my specific issue.
I've got four IPs on my account. The first ip, x.x.x.67, is the host IP(ie host.example.com). Most of my domains are using that IP at the moment since I just got set up, but I do have another domain on the last IP in my account, x.x.x.70. When I first did a RDNS check on my main IP I got a domain that I've never seen before, and all other IPs on my account don't resolve at all.
I sent a ticket off to the host, and they set the RDNS record correctly for the main IP on my account, but the other three still fail to resolve. When I asked the host about it in a ticket, the response that I got was
Quote:
Normally, we set RDNS for the main IP address to hostname of the server.
The RDNS for your server has been setup properly. Please get back to us if you need any further assistance.
So basically I'm clueless. Does it matter that the other three IPs I have available don't resolve at all? The domain on the x.x.x.70 IP, which doesn't resolve, is an e-commerce site that depends almost exclusively on e-mail for its business. Doesn't the lack of RDNS resolution mean that I'll be out of luck sending mail to AOL, Yahoo, Hotmail, etc etc on that account? Even though I don't have sites on the middle two IP addresses yet, I fully plan to put sites there within the next couple of months... could they have the same problem?
It's frustrating since I obviously have no control over RDNS records, and the host's staff is being a little obtuse about it.
my host won't do it for me, they said I have to do it myself... Is there anyway you guys can show me how to reverse dns in centos?
View 6 Replies View Related