Sendmail Relaying Denied. Proper Authentication Required

Oct 2, 2007

I can't figure out how to be able to send mails using sendmail. I've a dovecot/sendmail installation and I can recieve mails OK but when I try to send mail I get the error message "Relaying denied. Proper authentication required."

Example from maillog:
Oct 2 18:10:08 localhost sendmail[2196]: l92GA4UC002196: ruleset=check_rcpt, arg1=<xxxxx@gmail.com>, relay=rl-nvt-kaxx.xxxxxx.xxx [000.000.000.000] ....

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Relaying Denied. IP Name Lookup Failed [xx.xxx.xx.xxx]

Nov 17, 2006

My VPS Config:
centos with webmin
mail program sendmail

Its a newly configured VPS have a problem with smtp realying through outlook and other smtp programs. When i use smtp on outlook it give following error:

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'xxxxx@yahoo.com'. Subject 'Outlook', Account: 'Testing', Server: 'xxxx.com', Protocol: SMTP, Server Response: '550 5.7.1 <xxxxx@yahoo.com>... Relaying denied. IP name possibly forged [xx.xxx.xx.xxx]', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79

I want to make outgoing authentication activate instead of allowing some iprange or domain for relaying through /etc/mail/access.

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Jan 8, 2008

I am on a VPS and set everything up myself. When I try and email a friend, I get it bounced back with the following message (with his email filtered):

<<< 550-5.7.1 {mx078} Sorry, your helo has been denied. <<< 550 5.7.1 [url] 550 5.1.1 <**********@gmx.co.uk>... User unknown

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Mar 18, 2007

I recently moved to virtual dedicated hosting for my website, mainly because I wanted a better mail server to work with to manage a mailing list.

I have a few PHP software scripts for different things: managing affiliates and email marketing.

I want to send mail using both of those via SMTP on my new server. They both have a place to type in the host and username/password.

The problem I am noticing is SASL Authentication. They attempt to connect to the host without any trouble. However, the affiliate software fails SASL Authentication every time I try to send an email or test the email system.

Email marketing software connects when I manually send a campaign. However, users are supposed to immediately receive a confirmation mail upon opting in. In this case, it shows up as an attempt in the mail log, but it fails SASL Authentication. I don't know if it's a problem with the software or not, since it attempts to connect but fails, yet connects successfully in other cases.

My question is this: Is there another way around this? I've contacted my host to double check on the appropriate username/password to pass authentication. I will also be contacting the software developers after I receive an answer.

But if nothing comes of it, is there any way around it? Is there a place where I can have it automatically authenticate if the email is coming from a certain user, or if the attempt is being made from the same server (everything sits on the same server, I use localhost in the software to connect to the mail server). Since I am the only person who has access to the server and uses it, it seems safe to automatically authenticate if the request is being asked by the server itself...

I'm just looking for other alternatives if the software does indeed have a problem and I cannot figure it out.

Keep in mind I am very new to all this server and root access. Just a few days ago I was on a shared hosting plan, so I didn't have any access to anything. With that in mind, I know very little about mail servers, although I've been learning more over the past few days. I only stumbled upon the mail logs on my server recently by browsing files in the control panel (I'm not familiar with SSH, although I do have access to it)

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Dec 2, 2007

One of my clients has a couple of servers from me.

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Can I see on the server who has been using it to send via port 587? I didn't keep a record, the server is closing down and I'd like to let as many people as possible know that they need to change their SMTP settings .. there are only 50 or so I think.

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Nov 10, 2008

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Feb 14, 2008

I've got a domain name ("problemdomain.com") on my server (CentOS 4, WHM/cPanel) that has been set up with Postini for quite some time. All has been working & routing correctly. I recently changed to a new server with a new IP address. I transferred the account so that the DNS is setup identically on the new server. The only thing that changed is the main server IP, and the IP addresses that ns1.myserver.com and ns2.myserver.com resolve to. That propagation went through today and should be well set in.

Now, whenever you send an email to someone on this domain, it gets bounced back with the following:

This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

mail@problemdomain.com

Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 13): 550-exprod8mx214.postini.com (psmtp.com) [64.18.3.114] is currently not
550-permitted to relay through this server. Perhaps you have not logged into
550-the pop/imap server in the last 30 minutes or do not have SMTP
550 Authentication turned on in your email client.


The way I have the DNS setup on the server for the MX records is as follows:
problemdomain.com., 14400, IN MX, 100, laserskinsurgery.com.s8a1.psmtp.com.
problemdomain.com., 14400, IN MX, 200, laserskinsurgery.com.s8a2.psmtp.com.
problemdomain.com., 14400, IN MX, 300, laserskinsurgery.com.s8b1.psmtp.com.
problemdomain.com., 14400, IN MX, 400, laserskinsurgery.com.s8b2.psmtp.com.

This DNS is exactly the way it was setup before when it was working. Any ideas what could be causing this?

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I would like to have only domains that I host be allowed to send mail through my server. How can I accomplish this?

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Liquidweb is tell me I need an SSL certificate? I don't get it sicne I have a new server with them that doesnt get this error and another older one that doesnt get the error.

OK find]e, whatever.

I have free SSL's at namecheap from positivessl.
Can I use this on my host.domain.com and will it give ssl to all the domains on the server?

I host a whole bunch of domains on this server

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I facing a serious problem with my qmail and plesk 11.0.9.I found the way spammer did with my server by listening everything on port 25. Maybe he know the RCPT hosts of mine, and they send emails with random username but with domain hosted on my Plesk. (user1@mydomain.com, user2@ my domain.com, ... userxxx@mydomain.com).

qmail only check domain in RCPT if spammer input:"mail from user1@mydomain.com" - (with out ":") - no email address on my server.then server reply: 550, no mailbox here by that name. (#5.7.17)

But qmail check username and domain if spammer input:""mail from: user1@mydomain.com" - (with ":") - no email address on my server. Then server reply: 250 OK..This is really weird! I tried with all my plesk server, this bug still effected.Click to expand...

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Jun 6, 2008

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<sal@goldplateuk.com>:
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Code:
SMTP error from remote mail server after initial connection:
host umip1.um.edu.my [202.185.111.224]: 554 umip1.um.edu.my

Code:
SMTP error from remote mail server after initial connection:
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Code:
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