How to Send Contact Form 7 Submissions to MailRelay

MailRelay is an email marketing platform with its own SMTP infrastructure, popular in Spain and Latin America.

Contact Form 7 is the most popular form plugin on WordPress, and MailRelay is where that data needs to land. Here is how to connect the two without writing code.

Why connect directly?

Cloud automation tools charge per task and route your data through external servers. AFI runs entirely on your WordPress site, with no task limits, no monthly fees, and every request logged.

What you will need

• A WordPress site with Contact Form 7 installed and at least one form.
• A MailRelay account.
• The Advanced Form Integration plugin (free from WordPress.org).

Connect MailRelay to AFI

1. Log in to your MailRelay account.
2. Go to Settings → API and copy your API Key.
3. In WordPress, go to AFI → Settings → MailRelay.
4. Paste the API Key and your account name, then click Save.

Setting up the integration

1. Create a new integration

Go to AFI → Add New. Name it something like CF7 to MailRelay.

2. Pick your trigger

Select Contact Form 7 and choose the form. AFI detects fields automatically.

3. Select MailRelay as the destination

Choose MailRelay from the dropdown and pick Add Subscriber. This adds a subscriber to a MailRelay list.

4. Map fields

Match each MailRelay field to the corresponding Contact Form 7 field. Smart tags like {{_submission_date}} and {{utm_source}} are also available.

5. Add conditions if needed

Set up conditional rules to send only specific submissions based on form field values.

6. Save and test

Click Save Integration. Submit a test form and verify the data arrived in MailRelay. Check AFI → Log to debug any issues.

Free vs Pro

The free version maps email and name to MailRelay with unlimited submissions. Pro adds custom field mapping. No per-submission fees on any plan.

Frequently asked questions

Do I need coding skills?

No. Everything is configured through a visual interface.

Will adding this slow down my form?

No. AFI processes data asynchronously after the form is submitted.

Can I connect multiple forms?

Yes. Create as many integrations as you need, from different forms to different platforms.

Get started

Install Advanced Form Integration free from WordPress.org and connect Contact Form 7 to MailRelay in minutes.