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Mail Error 550 Unknown User

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this forum if you have installed hMailServer and want to ask a question related to a production release of hMailServer. Before posting, please read the troubleshooting guide. A large hmailserver 530 smtp authentication is required part of all reported issues are already described in detail here. Post

Hmailserver Disable Smtp Authentication

Reply Print view Search Advanced search 4 posts • Page 1 of 1 LilNick New user Posts: 4 sent: 530 smtp authentication is required. Joined: 2008-02-20 19:16 550 Unknown user, valid email address Quote Postby LilNick » 2010-04-30 13:03 Hia! I've been using hmailserver for about a year now. I am familiar with email

Hmailserver Smtp Authentication

principles and protocols but I'm looking for some clarification if any is possible, on a problem I am encountering.I can send an email from a server on our LAN to any email address but it fails when using one, specific domain.The message is failed and not queued to try again.I have not obfuscated the e-mail addresses as they are relevant.I'm hmailserver smtp authentication settings using Pyric's Quick Mail (QM) to test. This is the QM log.Code: Select allConnecting to [hmail.fdsystems.co.uk] port [25]...
220 hmail.fdsystems.co.uk ESMTP
>HELO cardiff-web
250 Hello.
>MAIL FROM:
250 OK
>RCPT TO:
ERR: Received the following unexpected repsonse:
550 Unknown user
>QUIT
221 goodbye
The hmail log is as followsCode: Select all"TCPIP" 1756 "2010-04-30 11:06:46.709" "TCPConnection - Posting AcceptEx on 0.0.0.0:25"
"SMTPD" 1756 390924 "2010-04-30 11:06:46.709" "172.21.10.6" "SENT: 220 hmail.fdsystems.co.uk ESMTP"
"SMTPD" 1756 390924 "2010-04-30 11:06:46.950" "172.21.10.6" "RECEIVED: HELO cardiff-web"
"SMTPD" 1756 390924 "2010-04-30 11:06:46.950" "172.21.10.6" "SENT: 250 Hello."
"SMTPD" 1756 390924 "2010-04-30 11:06:47.200" "172.21.10.6" "RECEIVED: MAIL FROM: "
"SMTPD" 1756 390924 "2010-04-30 11:06:47.210" "172.21.10.6" "SENT: 250 OK"
"SMTPD" 1756 390924 "2010-04-30 11:06:47.450" "172.21.10.6" "RECEIVED: RCPT TO: "
"SMTPD" 1756 390924 "2010-04-30 11:06:47.460" "172.21.10.6" "SENT: 550 Unknown user"
We have a split mail system here, using Exchange to manage user mail boxes and hmail to manage automated system mail boxes, quite common I'd expect. The address is a valid address on the Exchange system, we have no catch all addresses, instead we use hops to dete

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530 Smtp Authentication Is Required Outlook

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Mail file permissions are not readable or are incorrect. The email address was typed inc

Unknown User - Mailing Error If this is your first visit, be sure to http://forum.directadmin.com/showthread.php?t=40059 check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to https://productforums.google.com/d/topic/apps/U8gmHlJ7M3c proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 9 of 9 smtp authentication Thread: 550 Unknown User - Mailing Error Thread Tools Show Printable Version Email this Page… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 04-13-2011,08:42 AM #1 AdWarm View Profile View Forum Posts Verified User Join Date Apr 2011 Posts 27 550 Unknown User - smtp authentication is Mailing Error Hi Guys, When i try and send any emails from my domain and mailing account which both exisit on the DA server i get the "550 Unknown User" error. Here are todays main exim log: 2011-04-13 03:33:39 1Q8iMR-0006Kr-QV User 0 set for local_delivery transport is on the never_users list 2011-04-13 03:33:39 1Q8iMR-0006Kr-QV == root@server2.DOMAINREMOVED.co.uk R=localuser T=local_delivery defer (-29): User 0 set for local_delivery transport is on the never_users list 2011-04-13 11:33:39 1Q9Qbz-0003hP-Lg User 0 set for local_delivery transport is on the never_users list 2011-04-13 11:33:39 1Q9Qbz-0003hP-Lg == root@server2.DOMAINREMOVED.co.uk R=localuser T=local_delivery defer (-29): User 0 set for local_delivery transport is on the never_users list 2011-04-13 19:10:37 H=server2.DOMAINREMOVED.co.uk (DOMAINREMOVED.co.uk) [IPREMOVED] F= rejected RCPT : 2011-04-13 19:10:37 H=server2.DOMAINREMOVED.co.uk (DOMAINREMOVED.co.uk) [IPREMOVED] incomplete transaction (QUIT) from 2011-04-13 19:15:39 H=server2.DOMAINREMOVED.co.uk (DOMAINREMOVED.co.uk) [IPREMOVED] F= rejected RCPT : 2011-04-13 19:15:39 H=server2.DOMAINREMOVED.co.uk (DOMAINREMOVED.co.uk) [IPREMOVED] incomplete transacti

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