Bulk mail lost

[pachiko]

Hello, I have some strange problem

I have two constumers that have domain A and domain B
when sending mail from domain A to domain B , its ok ( webmail, outlook)

But the client domain A send bulk mail to handred domains in the same time, ( domain B included), the domain B doesnt receive the mail, We have checked the data base and the mail address is correct.

any ideas? what i have to check.
Waiting your replies.

Thank you.

 

[cutehosting4u]

Hey

May be client account compromised or using script which should be sending multiple mails at a time?, you should check header of mails, Hope, you will get exact reason .

 

[cPanelPeter]

Hello,

You should check the /var/log/exim_mainlog for errors.

 

[pachiko]

Hello,
What i find in /var/log/exim_mainlog

2014-01-05 11:06:11 1Vzkax-0006ND-Sq <= [email protected] U=user1 P=local S=642913 id=NDgzNDk5NwAC1868Y55BAMTM4ODkxNjM3MTI0NDg[email protected] T="Revue de presse du 05/01/2014" for [email protected]
2014-01-05 11:06:25 1Vzkax-0006ND-Sq => abcd<[email protected]> R=virtual_user T=virtual_userdelivery
2014-01-05 11:06:25 1Vzkax-0006ND-Sq Completed


The user1 send mail to user2

Waiting for your reply, I am stuck with this problem.

Thank you.

 

[cPPhilS]

Hello,

The transaction log provided indicates that the delivery from [email protected] to [email protected] was successful, contrary with the described problem.

Perhaps this was the log from the successful attempt? What do the logs show from the failed attempt?