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Topic: ERROR - Recipient is not accept (501)

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lebinson
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Joined: 24 October 2010
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Posted: 24 October 2010 at 11:28pm \| IP Logged

Hi,
Recently we download MailBee Objects ActiveX component. We implement MMQ mechanism for sending the mails to our customers.

Problem: Messages form Queue are sent in very selective way. We did not manage to identify the pattern when messsage is not send. SMTP log shows 250 and 501 codes almost in same frequency (once succeded once not).
Users from our domain DO recieve mails properly, but from outside domains DOESN'T, also not all outer domains are problematic. We do manage to send to hotmail.com, to inter.net.il and few others.

In our implementation we send message to only ONE customer (I see that this is important)

Do you have any suggestions how we can resolve this issue?

Many thanks for your help.

lebinson
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Posted: 24 October 2010 at 11:50pm \| IP Logged

Here is the detaild log as a result of sending such "BAD" message:
08:47:04 of thread #149c. Connecting to server...
08:47:04 of thread #149c. Connected to server
08:47:04 of thread #149c. Sending message from file 9b766146-3787-4596-8649e42ff8d83f45.eml
08:47:04 of thread #149c. Reading message file
08:47:04 of thread #149c. Sending MAIL FROM command
08:47:04 of thread #149c. Sending RCPT TO command
08:47:04 of thread #149c. ERROR - Recipient is not accepted
08:47:04 of thread #149c. Server reports: [501 5.5.4 Invalid Address]
08:47:04 of thread #149c. ERROR - The message has not been sent because server rejected it for some reason
08:47:04 of thread #149c. Renaming the problem message into C:\Mailbee\MMQ Files\9b766146-3787-4596-8649e42ff8d83f45.bad
08:47:04 of thread #149c. No more messages
08:47:04 of thread #149c. Disconnecting from server...
08:47:04 of thread #149c. Disconnected from server

Igor
AfterLogic Support

Joined: 24 June 2008
Location: United States
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Posted: 25 October 2010 at 12:54am \| IP Logged

What if you send mails from the same machine with same credentials, but without MMQ so that only MailBee Objects is used directly? By the sound of things, this looks like the mail server level problem (e.g. due to relaying denied).

--
Regards,
Igor, AfterLogic Support

lebinson
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Posted: 25 October 2010 at 10:10am \| IP Logged

Dear Igor,
I want to empahsize, that we DO manage to send mails by using MMQ, but not to ALL our customers, to be more precise only to few of them. In regular basis we send ~5000 mails per "mailing session"

In addtion I want to add some technical info:
1. We are using 2003 Server
2. IIS 6.0 with Default SMTP virtual server

Can you point as a bit more, what we should looking for?

Best regards,
Alex Lebinson, Senior Product Development Manager

lebinson
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Posted: 25 October 2010 at 11:27pm \| IP Logged

Dear Igor,
We do perform test as you advised (send the message without using MMQ)
Message is SEND!!!

In addition we check the "Relaying", it's defined for list of IP(s):
    several IPs
    server IP
    localhost
    127.0.0.1

Also we run Microsoft SMTPDiag tool for that "BAD" address. This test also show success statuses in each send mail step.

So, in this way, it leaves us with problem on OUR SMTP service configuration or YOURS MMQ behavior.

Please advise what should be our next step for making MMQ work as desired.

Best regards,
Alex Lebinson, Senior Product Development Manager

Igor
AfterLogic Support

Joined: 24 June 2008
Location: United States
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Posted: 26 October 2010 at 2:06am \| IP Logged

OK, let's clear this. You have used MailBee Objects to send mail from the same machine with exactly the same credentials as those used with MMQ, right? I need a confirmation that the same SMTP credentials, same machine, same sender and recipient work without MMQ but do not work with it.

--
Regards,
Igor, AfterLogic Support.

lebinson
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Posted: 26 October 2010 at 3:52am \| IP Logged

Hi Igor,
You wrote:
same machine with exactly the same credentials as those used with MMQ, right?

RIGHT!!!

It looks like we found the reason of such strange behavior.
We send mails when pattern of TO recipient has been:
[First Name] [Last Name] <e-mail>
When I change it to be a e-mail ONLY, things start to work with MMQ.

Now my question is what pattern fot TO recipient we should use, in order to preserve functionality of "user display name" ?

murati
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Joined: 31 October 2010
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Posted: 31 October 2010 at 7:54am \| IP Logged

I'm having the same problem if I set FromName.

Code:

15:45:58 of thread #15d4. Sending MAIL FROM command

15:45:58 of thread #15d4. ERROR - Sender "Some Name" <my@email.com> is not 

accepted

15:45:58 of thread #15d4. Server reports: [501 <"Some Name" <my@email.com>>: "@" 

or "." expected after ""Some Name""]

15:45:58 of thread #15d4. ERROR - The message has not been sent because server 

rejected it for some reason

It seems that you are using wrong wrapping. It should be:

Code:

"Some Name" <my@email.com>

and not

Code:

<"Some Name" <my@email.com>>

Igor
AfterLogic Support

Joined: 24 June 2008
Location: United States
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Posted: 01 November 2010 at 6:34am \| IP Logged

In order to submit messages to MMQ pickup folder, do you use SendToQueueEx or just SendToQueue method? We need to know if you override sender or recipient info within SendToQueueEx method itself.

--
Regards,
Igor, AfterLogic Support

murati
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Posted: 01 November 2010 at 7:49am \| IP Logged

I'm generating .eml file. Here is a raw header from file:

Code:

X-Sender: "Some Name" <my@email.com>

X-Receiver: some@email.com

MIME-Version: 1.0

From: "Some Name" <my@email.com>

To: some@email.com

Date: 1 Nov 2010 15:43:17 +0100

Subject: Testing

Content-Type: multipart/alternative;

 boundary=--boundary_0_468af7dd-4c0f-40ac-a267-f63b5c4f5b1f

Did I do something wrong?

Alex
AfterLogic Support

Joined: 19 November 2003
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Posted: 01 November 2010 at 11:52am \| IP Logged

X-Sender must be something like <my@email.com> or just my@email.com. X-Sender must contain only an email address, not any friendly names.

Regards,
Alex

murati
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Posted: 01 November 2010 at 3:50pm \| IP Logged

Thanks! Now it's working for me.

p3rocro
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Posted: 02 November 2010 at 6:13am \| IP Logged

thanks, that resolved my problem

lebinson
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Joined: 24 October 2010
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Posted: 03 November 2010 at 10:51pm \| IP Logged

Hi Igor/Alex,
Thanks for the tip how to wrap mail reciepient friendly name.
It start to work in our implementation, user full name wrapped with quotes

Here is our final code (in classic ASP):
sTo = objEMail.Message.ToUTF8("""" & flFirstName & " " & flLastName & """ <" & flEmail & ">")
sTo =objEMail.Message.EncodeHeaderText("To", sTo, "UTF-8", 3)
objEMail.Message.ToAddr = sTo

Thanks for your help.

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