email alerts not going through. I receive messages from contact us form, I get messages with new order but when I reply to messages on backoffice it doesn't go through. I don't get any error but buyer does not receive the message. Im using PS 1.7.7.4
I tried setting up SMTP but it gives me this error:
Error: Por favor, comprueba tu configuración
Expected response code 220 but got an empty response