You can try with:
<p>If you do not receive the email and it's not been redirected to your spam filter please contact us at: </p>
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You can try with:
<p>If you do not receive the email and it's not been redirected to your spam filter please contact us at: </p>
<a href="mailto:confirm@interconnectingautomation.com?subject=Bla-bla">
Send email</a>