I have an issue where I have a custom domain set up with gmail, I have all DNS pointing to the correct location as defined in the google documentation (4 hours is the smallest TTL my DNS allows me to assign):
I have already set up gmail in google admin, and that all seems correct to me.
The weird thing is that if I send email from the account [email protected] I can send it and the recipient will receive it.
However if they try to respond, they get an error from Mail Delivery Subsystem saying that it is not delivered, and it never appears in the [email protected] email address.
Does anyone know what I'm missing? I've made sure that there are no extra MX records that could be messing this up in my DNS as well. I have been googling around about it but I am not finding anything I haven't tried already and am not sure how to debug this.