Hello,
After upgrading Prestashop to 1.7.7.1 the email system doesn't work to me as well.
I tried with suggestion reached in this topic.
My host is IONOS on a shared server.
I tried with SMTP parameters:
(I have this parameter in my IONOS ACCOUNT)
smtp.ionos.it
TLS 587
In Prestashop TEST mail it works. The test email is sent to the email address I choose, but if I replay to a Customer in Customer Service it doesn't work.
I think SMTP paramters in prestashop should be work as another email client.
I tried already with
SSL PORT 465 or
no protected conncection with PORT 25.
Always the TEST email was sent, but never from customer service.
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UPDATE: I found the emails go to spam folder.
So the problem is not Prestashop, but my hosting provider.
Any idea?
Here my Prestashop configuration (attached):
Do you have an idea?