Hi, I'm Sandy and I look forward to help you today with the best answer possible.
I'm sorry about the issue.
I will work with you until it gets fixed. This is a question and answer session. Please do not hesitate to reply back to me at the box given below.
Could you please tell me about your email service provider? gmail/hotmail/yahoo or other.
okay, I will now provide you all of the possible steps.
I'm sorry for the delay. I'm posting my answer step by step now.
Step A: First of all, please login into your gmail webmail account.
Click the link: http://gmail.com
and click Settings(gear icon at the top right hand side)
Scroll down under General tab.
And then check under Vacation responder and it must be turned off.
Step B: Change your Gmail account password.
If this does not help, please let me know. I will provide you another few steps.
You will find vacation responder under your gmail webmail account General tab Settings.
You can please watch this video once: