Auto notification : invalid MAIL FROM for smtpauth session

[Athena]

Hello,

I have configured OTRS with the following environment :
- Windows 2008 R2
- MySQL 5.6
- IIS

Everything is working fine, except the automatic answers.
I can received mails (automatic creation of tickets), and I can manualy send mails during ticket processing.

I also configured some automatic answers but :
- they are not sent
- the CRONw scheduler is stopped
- I received the following message : [Sun Dec 22 18:50:04 2013][Error][Kernel::System::Email::SMTP::Send][122] Can't use from '': 555sorry, invalid MAIL FROM for smtpauth session (http://travaux.ovh.net/?do=details&id=5510)

It seems that "FROM" field in these mails is null or incorrect.

I already have the following parameters :
$Self->{'SendmailModule'} = 'Kernel::System::Email::SMTP';
$Self->{'SendmailModule::Host'} = 'smtp.mydomain.com';
$Self->{'SendmailModule::Port'} = '587';
$Self->{'SendmailModule::AuthUser'} = 'otrs-admin@mydomain.com';
$Self->{'SendmailModule::AuthPassword'} = '**********';

But nothing about the sender address...
Where can I configure this parameter in config.pm ?

Thanks in advance for your help.

[crythias]

AutoReplies come from their own email addresses and your SMTP server may not like the send from. This error is from your SMTP server, not from OTRS.

[Athena]

Yes, I know that.
The remote SMTP server deny to relay the mail send from OTRS, becauses that mail does not content the sender reference "FROM" field.

Therefore, my question is : how can I configure OTRS to include this FROM field in the mails he send automaticaly (auto notifications) ?

[crythias]

Your original question referenced "Automatic Answers"
Your followup indicates auto notifications (These wouldn't be answers, these would be notifications.)

What do you have in SysConfig for sendmail?
https://www.google.com/search?q=site:fo ... il+address
https://www.google.com/search?q=site:fo ... +MAIL+FROM
viewtopic.php?t=17278&p=67132