sending messages does not work woocommerce issue

I’d start by recommending you consider using a submission storage plugin like Contact Form DB or Contact Form 7 Storage to save all your CF7 form submits to the WP database. These are often used by experienced WP users – they provide a robust record of all form submissions even when things go a little wrong.

Many people also use Flamingo – another plugin by Takayuki Miyoshi.

My experience is that the submission storage plugins are very robust and rarely fail to save a CF7 form submit.

Then for problems with getting emails 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.

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.​​