Authentification problem...

[Mister P]

Hi,

I have an authentification problem with my internet host: my sending is rejected during the very the first attempts (and accepted 5 minutes later...).

The message :

sorry, invalid MAIL FROM for open-smtp session

The host administrator thinks that theMaxBulk authentification process is incomplete...


Any info from developers ?

 

[stanbusk]

MaxBulk Mailer uses the standard ESMTP LOGIN, PLAIN and MD5 authentication scheme. The authentication is a very simple process. One step for PLAIN and two steps for LOGIN.

 

[Mister P]

Unfortunately, I don't fully understand what you say...

Does MaxBulk authenticate with pop before sending ?
(I copy/paste your answer then to my host support...)

 

[stanbusk]

There are two ways to authenticate depending on what the server is expecting, sometimes it can be a POP authentication but most of the time it is an ESMTP authentication. There are several types of ESMTP authentications, the most popular are PLAIN, LOGIN and MD5. MaxBulk Mailer supports all that.

 

[Mister P]

My server host requires a POP authentification before sending process. So I have selected POP in the Authentication scroll down setting menu.

I seemed to be OK but the authentication should be incomplete (as my host support told me) so the server closes the connection : it's because the server sees that the MAIL FROM address is different from the account address during authentification...

555 sorry, invalid MAIL FROM for open-smtp session

(of course I put the very same email address everywhere : FROM/ANSWER TO/ACCOUNT)

Where is the problem ?...
:roll:

 

[stanbusk]

I don't know, have you asked your server support? Maybe you have to use a given email address as the sender...

 

[Mister P]

Yes, the given address is the ACCOUNT one.
So I did it. And I use this very same address too for FROM and ANSWER TO fields.

So I am coherent and should completely fulfill their requirements.
But obviously they aren't...

Are you sure that MaxBulk completely authenticates before sending ?

 

[stanbusk]

There is only one way to perform a POP authentication. Can you paste here the authentication lines from the connection log?

 

[Mister P]

sure :

[01] 12/7 15:55:54 --> Connecting socket [1] with 1 entries to ns0.ovh.net:587 Port:587
[00] 12/7 15:55:54 +OK Welcome to OVH Mail server 622
[00] 12/7 15:55:54 > USER [email protected]
[00] 12/7 15:55:55 +OK
[00] 12/7 15:55:55 > PASS ********
[00] 12/7 15:55:55 +OK Logged in.
[00] 12/7 15:55:55 > QUIT
[01] 12/7 15:55:55 ~ Status: Connected
[00] 12/7 15:55:55 +OK Logging out.
[01] 12/7 15:55:55 220 ns0.ovh.net ssl0.ovh.net. You connect to mail622.ha.ovh.net ESMTP
[01] 12/7 15:55:55 > HELO [127.0.0.1]
[01] 12/7 15:55:55 250 You are: 89.96.50.3:tvn95-2-89-96-50-3.dsl.club-internet.fr
[01] 12/7 15:55:55 > MAIL FROM:<[email protected]>
[01] 12/7 15:55:55 555 sorry, invalid MAIL FROM for open-smtp session (http://travaux.ovh.com/?do=details&id=2602)
[01] 12/7 15:55:55 > RCPT TO:<[email protected]> [1/1]
[01] 12/7 15:55:55 ~ Status: Remote server has unexpectedly closed the connection (#102).
[00] 12/7 15:55:55 ~ Status: [!]
[00] 12/7 15:55:55 ~ Status: Closing all streams
[00] 12/7 15:55:55 ~ Status: Creating report...
[00] 12/7 15:55:55 ~ Status: Finishing..

 

[stanbusk]

Is [email protected] your real sender address?

 

[Mister P]

I have modified it for this thread purpose, but yes, the same address is for FROM, REPLY TO and ACCOUNT...

 

[stanbusk]

I can see the explanation here:

A partir du lundi 17 Novembre, les règles pour l'envoi des emails via OPEN-SMTP vont être modifiées.

Pour rappel, OPEN-SMTP est la fonctionnalité qui permet d'envoyer des emails après un accès POP (lecture des messages) sans devoir s'authentifier.

Actuellemment, il n'y a aucune contrainte sur ces envois, mais nous allons instaurer une règle pour prévenir l'envoi de SPAMs.
A partir de lundi, les messages envoyés via open-smtp ne seront acceptés que si l'adresse de messagerie du champs From/Expéditeur est identique au login de connexion utilisé pour l'accès POP.

Ce changement ne devrait pas provoquer de gène pour la majorité des utilisateurs.

Pour les utilisateurs qui utilisent un champs From différent du login de connexion, il sera nécessaire de configurer leur messagerie pour effectuer une connexion avec authentification (Sous outlook, vous devez sélectionner l'option "mon serveur de courrier sortant nécessite une authentification" et mettre votre login et votre mot de passe.)

 

[Mister P]

Yes Stanbusk I saw it.
Its says that the FROM email has to be the same than the connexion login used in POP authentication.

In MaxBulk parameters, I asked for that...
But unfortunately I am rejected by the server.
:?

My host support tells me that there should be somewhere in MaxBulk an option to select saying : 'server requires authentication'

 

[stanbusk]

Yes, this the the authentication pull-down menu.

 

[Mister P]

OK so if the POP authentication made by MaxBulk is standard and complete (?), the problem comes from my host server process...

 

[stanbusk]

Your host says that the POP address has to match the sender address. I guess they mean the POP account ID that is perhaps your email address. If so, that address should be your sender address as well. This is what I understand.