davmerit

https://wordpress.org/plugins/mailpoet-contact-form-7/ – could be of help

Though the plugin successfully sends millions of emails every day, there are a host of issues that can stop or delay emails on both the sending and receiving ends. It depends entirely on your local Server & WordPress configuration. You will need to investigate this issue for your particular local configuration.

See Contact Form 7 Email Issues. There is a link at the bottom of the page to a comprehensive and detailed article which covers many issues. Most people that work through this information appear to be able to resolve their email sending & receiving issues.

Also see After submitting the form, I get an error message stating “Failed to send your message”. What is wrong?​​

This is not available directly in Contact Form 7. It can be done via custom programing but you would need to be rather skilled at WordPress development using PHP and/or jQuery.

Do you have your form tags in the mail section of your CF7?

Please include a link to your Contact Form 7 form plus all your input in the Form and Mail sections of the CF7 interface. If others here are able to understand your actual problem, they may be able to offer a possible solution.​​

Please include a link to your Contact Form 7 form plus all your input in the Form and Mail sections of the CF7 interface. If others here are able to understand your actual problem, they may be able to offer a possible solution.

See Contact Form 7 Interface at https://cacoo.com/diagrams/2xhVwuNicE1G20Df-6E3D9.png

Please supply the info you have used in the sections marked 4 & 6 in that image.

Many people just paste the relevant sections as code here.

For example the info from the default CF7 form looks like this:

FORM:

Your Name (required)
    [text* your-name]
Your Email (required)
   [email* your-email]
Subject
    [text your-subject]
Your Message
    [textarea your-message]
[submit "Send"]

MAIL:

To:
name@example.com
From:
[your-name] <[your-email]>
Subject:
[your-subject]

MESSAGE BODY:

From: [your-name] <[your-email]>
Subject: [your-subject]
Message Body:
[your-message]
--
This mail is sent via contact form on WordPress http:example.com

See Styling Contact Form for a general explanation of styling CF7 forms using CSS.

There is a link at the bottom of the page to a comprehensive and detailed article on Styling Contact Form 7 Forms. The article shows people, with suitable HTML & CSS skills, how to change the appearance of their Contact Form 7 Forms to meet their particular requirements.

​

I changed it to table width 100% and row width 50%

That is probably the cause of the problem. Please include a link to your Contact Form 7 form plus all your input in the Form sections of the CF7 interface. If others here are able to understand your actual problem, they may be able to offer a possible solution.

Please read from the link @nae has provided.

You can add something like this to your form

[select your-recipient "ceo@example.com" "sales@example.com" "support@example.com"]

Please remember to add​​​​ [your-recipient] in your mail section if you need to display the users choice.

But there are about 3 contact form with the same email address.other two is working fine

There several factors that could cause problem. Please include all your input in the Mail sections of the CF7 interface.