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550 - relay not permitted

Denzil
Grafter
Posts: 1,733
Registered: 31-07-2007

550 - relay not permitted

Hi, folks,
I am trying to reply to an email, but I'm getting delivery failure notifications with this error. I am using a charity domain name hosted by 1and1. I understand some ISPs block relayed mail, although this is the first time I have seen it. If I reply form home it is being relayed through PN, of course. I get the same notification if I reply from work (relayed through their ISP, Eclipse), and, strangely, even if I log on to 1and1 webmail and try to send it from there.
I could send it from my PN address, but it looks better coming from the charity domain. Any way round this?
9 REPLIES
Community Veteran
Posts: 1,576
Thanks: 3
Registered: 13-04-2007

Re: 550 - relay not permitted

Its normally blocked by ip so if you are on plus net you try to send with a plusnet ip the same at work but webmail should work or there isnt much point having it. Who has the MX record for the domain do you know? They should be able to set it to allow mail via plusnet if they want  to that is
Depending on the software you use for email you should be able to set the return address to the charity which may do but the header would show it comes via plusnet if anyone looked.
Moderator
Moderator
Posts: 18,694
Thanks: 1,951
Fixes: 247
Registered: 11-01-2008

Re: 550 - relay not permitted

Can you post the error message? SWMBO uses the 1and1 webmail to send mail with no issues from both her office and my parents with no issues.
Also uses the 1and1 relay (with authentication) from our PN line..

Customer / Moderator / If it helped click the thumb / If it fixed it click 'This fixed my problem'

Community Gaffer
Community Gaffer
Posts: 13,418
Thanks: 1,182
Fixes: 92
Registered: 04-04-2007

Re: 550 - relay not permitted

Does your domain have an spf record?

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

Denzil
Grafter
Posts: 1,733
Registered: 31-07-2007

Re: 550 - relay not permitted

Quote from: Bob
Does your domain have an spf record?

It appears not. Is it worth asking our webmaster to look into it?
Quote from: adiewoo
Can you post the error message? SWMBO uses the 1and1 webmail to send mail with no issues from both her office and my parents with no issues.
Also uses the 1and1 relay (with authentication) from our PN line..

I only have 1 message to hand here at work. Tried to send this relayed through Eclipse.
Quote
The following message to <xxxx@xxxx.com> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'relay not permitted'
Reporting-MTA: dns; smtpout.karoo.kcom.com
Final-Recipient: rfc822;xxxx@xxxx.com
Action: failed
Status: 5.0.0 (permanent failure)
Remote-MTA: dns; [83.170.64.235]
Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'relay not permitted' (delivery attempts: 0)

The others are similar, but have come through different servers i.e. not all from Karoo.
Quote from: Samuria
Who has the MX record for the domain do you know?

1and1, who host the domain.
Denzil
Grafter
Posts: 1,733
Registered: 31-07-2007

Re: 550 - relay not permitted

If it helps, here is another failure notification, resulting from the attempt to send by 1and1 webmail. A third sent from home using the same account, but relayed through PN gave basically the same message, but with "X-Mailer: webmail" replaced by "X-Mailer: Evolution 2.24.3".
Quote
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of
its recipients. The following addresses failed:
  <xxxx@xxxx.com>
SMTP error from remote server after RCPT command:
host uk2mxarray3.uk2.net[83.170.64.214]:
550 relay not permitted
--- The header of the original message is following. ---
Received: from pustefix157.kundenserver.de (pustefix157.kundenserver.de [172.23.4.157])
        by mrelayeu.kundenserver.de (node=mreu1) with ESMTP (Nemesis)
        id 0MKv1o-1Ltjob4BWd-000jvW; Tue, 14 Apr 2009 16:40:46 +0200
Message-Id: <26856265.1976971239720046017.JavaMail.servlet@kundenserver>
From: yyyy.yyyy@yyyy.org.uk
To:  <xxxx@xxxx.com>
Subject: RE: xxxxxxxxx
Cc:  <zzzz_zzzz@yyyy.org.uk>
MIME-Version: 1.0
Content-Type: multipart/alternative;
        boundary="----=_Part_106205_1826661.1239720045966"
X-Priority: 3
X-Binford: 6100 (more power)
X-Mailer: Webmail
X-Originating-From: 30183427
X-Routing: UK
X-Message-Id: <30183427$1239720045966172.23.4.157835882@pustefix157.kundenserver.de--1016514742>
X-Received: from pustefix157.kundenserver.de by 91.85.64.161 with HTTP id 30183427 for [xxxx@xxxx.com]; Tue, 14 Apr 2009 16:40:45 CEST
Date: Tue, 14 Apr 2009 16:40:45 +0200
X-Provags-ID: V01U2FsdGVkX1+S+YLzHSWGHjdBse9wx0r9NAI4i2RCqL98Sid
Nex+NQ13cxBeEppHvjEIWJwUUKfDO6Bvf7/C+nQ1fXRWzwjAG3
rfaULTiPT0=

Oh, good grief! I tried sending a reply direct from my PN address, and as I was typing have just got another error message Sad Sorry for the length, but here is the full source minus the content, in case it reveals anything.
Quote
Return-path: <>
Envelope-to: xxxx@username.plus.com
Delivery-date: Wed, 15 Apr 2009 22:14:45 +0100
Received: from [212.159.7.39] (helo=mx.ptn-ipin04.plus.net) by
fhw-inmx06.plus.net with esmtp (PlusNet MXCore v2.00) id 1LuCRR-0005tC-5g
for xxxx@username.plus.com; Wed, 15 Apr 2009 22:14:45 +0100
Authentication-Results: mx.ptn-ipin04.plus.net; dkim=neutral (message not
signed) header.i=none
Received-SPF: None identity=pra; client-ip=84.92.2.97;
receiver=mx.ptn-ipin04.plus.net; envelope-from="";
x-sender="MAILER-DAEMON@relay.ptn-ipout01.plus.net";
x-conformance=sidf_compatible
Received-SPF: None identity=mailfrom; client-ip=84.92.2.97;
receiver=mx.ptn-ipin04.plus.net; envelope-from="";
x-sender="postmaster@relay.ptn-ipout01.plus.net";
x-conformance=sidf_compatible
Received-SPF: None identity=helo; client-ip=84.92.2.97;
receiver=mx.ptn-ipin04.plus.net; envelope-from="";
x-sender="postmaster@relay.ptn-ipout01.plus.net";
x-conformance=sidf_compatible
X-SBRS: 5.3
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result:
Aj4DADPr5UlUXAJhmWdsb2JhbACNRwGIUgEBAQEBCAsKBxFDqm8Ih2WKbg4IgTg
X-IronPort-AV: E=McAfee;i="5300,2777,5585"; a="63119632"
X-IronPort-AV: E=Sophos;i="4.40,194,1238972400";  d="scan'208";a="63119632"
Received: from mx.ironport.plus.net (HELO relay.ptn-ipout01.plus.net)
([84.92.2.97]) by mx.ptn-ipin04.plus.net with ESMTP; 15 Apr 2009 22:14:44
+0100
Received: from localhost by relay.ptn-ipout01.plus.net; 15 Apr 2009
22:14:41 +0100
Date: 15 Apr 2009 22:14:41 +0100
To: xxxx@username.plus.com
From: "Mail Delivery System" <MAILER-DAEMON@relay.ptn-ipout01.plus.net>
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status; boundary="+rSv.4PvvlctUy.U87bo.E+5bBeR"
Message-ID: <E1LuCRR-0005tC-5g@fhw-inmx06.plus.net>
X-PN-Virus-Filtered: by PlusNet MXCore (v5.00)
X-PN-Spam-Filtered: by PlusNet MXCore (v5.00)
Subject: Delivery Status Notification (Failure)
X-Evolution-Source: pop://username@mail.plus.net/

--+rSv.4PvvlctUy.U87bo.E+5bBeR
content-type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
The following message to <xxxx@xxxx.com> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'relay not permitted'
--+rSv.4PvvlctUy.U87bo.E+5bBeR
content-type: message/delivery-status
Reporting-MTA: dns; relay.ptn-ipout01.plus.net
Final-Recipient: rfc822;xxxx@xxxx.com
Action: failed
Status: 5.0.0 (permanent failure)
Remote-MTA: dns; [83.170.64.212]
Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'relay not permitted' (delivery attempts: 0)
--+rSv.4PvvlctUy.U87bo.E+5bBeR
content-type: message/rfc822
Received: from ptb-relay03.plus.net ([212.159.14.147]) by
relay.ptn-ipout01.plus.net with ESMTP; 15 Apr 2009 22:14:10 +0100
Received: from ptb-relay03.plus.net ([212.159.14.147]) by
relay.ptn-ipout01.plus.net with ESMTP; 15 Apr 2009 22:14:10 +0100
Received: from [212.159.113.65] (helo=[192.168.1.64]) by
ptb-relay03.plus.net with esmtp (Exim) id 1LuCQs-0002az-Kw; Wed, 15 Apr
2009 22:14:10 +0100
Subject: Re: xxxxxxx
From: Denzil Searle <xxxx@username.plus.com>
Reply-To: xxxx@username.plus.com
To: xxxx <xxxx@xxxx.com>
Cc: zzzz_zzzz@yyyy.org.uk
In-Reply-To: <000001c9bcdf$ed3e45e0$c7bad1a0$@com>
References: <000001c9bcdf$ed3e45e0$c7bad1a0$@com>
Content-Type: text/plain
Date: Wed, 15 Apr 2009 22:14:09 +0100
Message-Id: <1239830049.5876.4.camel@denzil-desktop>
Mime-Version: 1.0
X-Mailer: Evolution 2.24.3
Content-Transfer-Encoding: 7bit
X-Plusnet-Relay: a08a3ab3a235175b5ab8e40cb42fd3a0
Denzil
Grafter
Posts: 1,733
Registered: 31-07-2007

Re: 550 - relay not permitted

I have got someone else to try with the same result, so I think it must be an issue with the recipient's domain host. I have looked up the domain and found some ownership details, so I'll try to contact them that way.
itsme
Grafter
Posts: 5,924
Thanks: 1
Registered: 07-04-2007

Re: 550 - relay not permitted

You may want to try this to test if it's a valid address. Go to the blue box near the bottom and enter the address you are sending to.
itsme
Grafter
Posts: 5,924
Thanks: 1
Registered: 07-04-2007

Re: 550 - relay not permitted

Below are the results that I get using the above link testing a domain I have with a mx record that's pointing to my mail server but the mail server has not be configured to receive emails for this domain.
Quote
Resolving host name "mail.xxxxxxxx.me.uk"...
Connecting to host address "xxx.xxx.x.xxxx"...
Connected.
S 220 mail.xxxxxxxxxxxxx.me.uk ESMTP (Code-Crafters Ability Mail Server 2.63)
C HELO find-ip-address.org
S 250 mail.xxxxxxxxx.me.uk
C MAIL FROM: <admin@find-ip-address.org>
S 250 Email address accepted. <admin@find-ip-address.org>
C RCPT TO: <fred@xxxxxxxxxx.me.uk>
S 550 Account is not local, relaying disallowed. <fred@xxxxxxxxxx.me.uk>
This host states that the address is not valid.
Disconnected.
Denzil
Grafter
Posts: 1,733
Registered: 31-07-2007

Re: 550 - relay not permitted

Aha, good call, itsme.
Quote
...
C RCPT TO: <xxxx@xxxx.com>
S 550 relay not permitted
This host states that the address is not valid.
Disconnected.
xxxx@xxxx.com
address is not
a valid suitable e-mail box address.

So, if I can get in touch I can suggest what they need to do to start receiving emails!