Test email works, but contact form still "fails to send message"

What is the error message in the Email Log?

When I send a test email from Postman I get this message: Your message was delivered (2958 ms) to the SMTP server! Congratulations ??

I get this result with the connectivity test: https://postimg.org/image/sxss8i0sf/

And this is the result of the diagnostic test:

OS: Linux box1035.bluehost.com 3.12.35.1418868052 #1 SMP Wed Dec 17 20:04:02 CST 2014 x86_64
HTTP User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
Platform: PHP Linux 5.4.43 / WordPress 4.3.1 en_US
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=Yes
WordPress Theme: Swell
WordPress Plugins: Contact Form 7, CSSHero, Custom Post Type Permalinks, Postman SMTP, Responsive Column Widgets, Team, ThemeTrust Shortcodes, Under Construction, WordPress Importer, WP Mobile Detect
Postman Version: 1.6.23
Postman Sender Domain (Envelope|Message): urbanproperties.com|urbanproperties.com
Postman Prevent Message Sender Override (Email|Name): No|No
Postman Transport URI: gmail_api:https:oauth2://www.googleapis.com:443
Postman Transport Status (Configured|Ready|Connected): Yes|Yes|Yes
Postman Deliveries (Success|Fail): 0|14
Postman Bind (Success|Fail|Path): Yes|No|/home1/urbanps6/public_html/wp-content/plugins/postman-smtp/Postman/PostmanWpMailBinder.php
Postman TCP Timeout (Connection|Read): 10|60
Postman Email Log (Enabled|Limit|Transcript Size): Yes|10|128
Postman Run Mode: production
Postman PHP LogLevel: 40000
Postman Stealth Mode: No
Postman File Locking (Enabled|Temp Dir): Yes|/tmp

Does that provide you with the information you are requesting?

I should have been more specific. When you send a message from Contact Form 7, you get this

the error still reads “Failed to send your message. Please try later or contact the administrator by another method.”

at this moment there will be a new entry made in Postman’s Email Log (check the Tools menu) with the cause of the above error. What is that error message?

Oh, I didn’t realize that existed! Cool ??

It says “Invalid e-mail address: [your-email]”

Here’s a screenshot of what my Contact 7 Mail panel looks like: https://s9.postimg.org/jn3uv80gf/Screen_Shot_2015_10_01_at_8_04_38_PM.png

ah i know.

it’s your Reply-To header. According to your screenshot, the tags you are allowed to use are:

[FullName] [Email] [Subject] [Message]

So all your fields are wrong.

Your subject should be [Subject]
Your Reply-To should be [FullName] <[Email]>
You should remove Sender
And your Message Body should have [Message]

try again!

That worked!!!!! Thank you SO SO much!