550 5.7.1 Unable to relay for ... Error on an existing Exchange account. : relay, unable, exchange

May 12, 2008 01:13am pdt

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11.15.2003 at 10:22AM PST, ID: 20799097

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8.8

550 5.7.1 Unable to relay for ... Error on an existing Exchange account.

Zone: Exchange Email Server

Tags: relay, unable, exchange

I'm an IT consultant for a branch office of a company, there Email servers are out of my control, but I wanted to see if this was definately an issue that was out of my hands.

One mail account started getting these errors when sending mail to addresses generally outside of the companies domain. This account has been active for nearly 2 years, and the company has several hundred employees but I've only seen it on one account. The error is reproducable on several machines using Outlook 2000, Outlook XP, Outlook 2003, and Outlook Express 6. I haven't tried any non-Microsoft clients, but I don't think that would really help. The account is connecting through POP3 and mail sent through OWA works fine.

Does this appear to be an issue on the Exchange server or is there something else I need to check?

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Question Stats

Zone: Networking

Question Asked By: glennpratt

Solution Provided By: Bembi

Participating Experts: 10

Solution Grade: A

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11.15.2003 at 12:37PM PST, ID: 9755360

Rank: Master

MFay:

POP3 is a download protocol. SMTP is the transmit or sending protocol. Of all the other clients you mention, this one user MUST be using the Internet ONLY mail configuration for those clients as is Outlook Express. The user has an issue with the Exchange Server SMTP permissions I believe.

Has it ever worked for this user?

If they can use OWA successfully, that isolates my theory. Check with an Exchange Admin for this company when support is available internally.

~Mark

Assisted Solution

11.15.2003 at 12:39PM PST, ID: 9755375

glennpratt:

Sorry, meant POP3/SMTP as opposed to MAPI or something else. Anyway it worked fine for 2 years.

11.15.2003 at 02:24PM PST, ID: 9756350

Rank: Wizard

Bembi:

Do you have additional SMTP/POP3 clients? Are others (if you have) are still working fine?

Does this user really logon on the domain? Maybe it uses a local account and therefore has no permissions for relay. Also check the email addresses of this account, esp. the main-address, which is used for sending.

EXCH checks if either the senders or recipient address is inside the authoritive domain. As you have told, that this happens only for mails to external targets, it points me to the direction to assume, that either the authentification of the client or the sender address may be responisble for this behaviour.

Accepted Solution

04.13.2004 at 11:39PM PDT, ID: 10820784

vayoha:

make sure that the outgoing mail server authentication option is checked for his pop3 client. also make sure he puts in the right domain accoutn user name and password. I have a few users having problem like this when they decided to install and configure their outlook express client themselves.

07.25.2004 at 09:45PM PDT, ID: 11634750

bsrajirs:

Hai

I am reciving this error message
"the action could not be completed.the name could not be matched to a name in the address list." while configuring the exchange server email address in the outlook 2003.
If anyone have idea send to me

thanks

08.25.2004 at 08:06AM PDT, ID: 11893259

osu9400:

Does the server have a recipient policy to match the domain name?m Look in ESM, Recipient Policies, Default Policy.

10.06.2004 at 11:15PM PDT, ID: 12245926

prabhusathya:

iam facing this trouble not able to send to some mail's to other domain the rest is fine iam have this error message

3550 (000B09AA) 550 5.7.1 Unable to relay for

a use name but the user is logged in their user account is there any other possible way to solve this problem

08.01.2005 at 03:20AM PDT, ID: 14568583

smoores4321:

I have been having the same error message whilst configuring by new Windows 2003 server. I am using the basic POP3 service. I found the virtual SMTP service in IIS was restricting relays from All IP Addresses, I change it like this:

1. Go to Start -> Administration Tools -> IIS
2. Locate Default SMTP Virtual Server.
3. Right click and select properties.
4. Click Access tab and select Relay button.
5. Alter setting to enable an IP Address or range.
6. Restart Virtual Server by right click on Virtual Server in menu and selecting stop and start.

Hope this helps someone.

08.25.2005 at 10:16AM PDT, ID: 14754159

djkiraly:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q275575

This article also recommends disabling the fixup protocol smtp 25 on PIX firewalls...

HCTiller

11.29.2007 at 08:23AM PST, ID: 20374822

Ran into the same issue and got the solution here.... Thx Guys!

PelicanDave2001

01.28.2008 at 11:47AM PST, ID: 20762186

I am also having this same (original) problem, but only intermittently. A user will get this message trying to email to a vendor, and an hour later, a message is sent with no problems. Does anyone have any idea why he might be recognized as a legit sender "sometimes" but not others? He does not log off and on again between attempts. Most of the time, it works. "Sometimes" it doesn't.

20080236-EE-VQP-29