Confirmation email not send to customer

-- HikaShop version -- : 2.6.3
-- Joomla version -- : 3.5.1
-- PHP version -- : 7.0.6

Hi,
I have hikashop and hikamarket multivendor (version 1.7.0).
Now when a customer places and order before going to the payment system 2 emails are being send out. 1 to administrator and 1 to the customer. This works all fine.
Once the customer does the payment the status of the order changes to confirmed, but no email is being send to the customer to confirm their payment.
I have turned of some of the plugins like the attach pdf invoice to see if that was the problem. Also restored the email to default (order_status_notification) but it doesnt make a difference. I dont know if it has anything to do with hikamarket multi vendor or something else in hikashop.
If i manually change the order status and say notify customer the emails are send with no problems.
Any help would be appreciated.
Thanks

Hi,

I have checked the Users->Email which by the way is great feature that i didnt even know about yet, but it said it send it the email out.
Have checked the mailserver logs but couldnt find anything. The weird thing is too the the same email will come through when i change the status and say notify customer. I did remove some attachments that i had with the emails and did payment through PayPal. This actually worked fine. Received all the emails. The payment plugin i am using is cciDeal and am in contact with the developer to see what the problem might be. Since its working with paypal but not iDeal payments.
Thanks for the info and troubleshooting tips.

Hi,
I do have the Attach PDF Invoice plugin running, but also when going to system->emails with the order status emails i added 2 pdf attachments (terms & conditions and return form).
On the mailserver i can see the order created email going through, but the order status email (confirmation email) there is nothing in the logs. I also checked the PHP error.log but there is nothing in there.
Also reset the order status email, so removed changes i made to it to see if there was an issue in that, but that didnt make a difference either.
What i will do is, since the website is live, copy the website to a test site and take the attachments off and see if it goes through.
Im also talking to the cciDeal developer and he said it should work ok, so i think its best to go back to the test site and start adding changes one by one to see where it goes wrong.

Hi,
I still have the issues of the confirmation email not being send after payment. I turned all the plugins off and reset the order status emails to default. Still no emails to the customer. In de email log it doesnt show its being send out. It will show the order creation email being send to the customer.

I did find the following error that shows in the attached file.

Hi Nicolas,

I have done some extensive testing with the different payment plugins and did find out the ccIdeal plugin is basically working correctly up to the point where the email needs to be send to the customer, that they have made their payment.
I ended up with a different payment plugin from JD Ideal, since after sending emails to the developer of ccIdeal i didnt get a response.
Your response was really helpfull in finding the problem.
Thanks,
Roger