Testing the Send Email Smart Service I’ve tried to send a message to an email ad

Testing the Send Email Smart Service I’ve tried to send a message to an email address with the following format name@domain.com.XX, where XX is the acronym of a specific country. The sub process finished normally, the smart service didn’t fail but the email was not sent, at least to the requested email.
In the same test instance I had 2 BCC emails address with the standard format (name@domain.com) and the Send Email Smart Service was able to send to these emails address.
Btw, it is a real email address and I am able to check the inbox.
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OriginalPostID-64301

OriginalPostID-64301