Dirk St?cker:
> <rem...@remotemail.tld>: host mail.remotemail.tld[X.X.X.X] said:
>      550-Verification failed for <t...@email.tld> 550-Called:
>      Y.Y.Y.Y 550-Sent:     RCPT TO:<t...@email.tld>
>      550-Response: 554 5.7.1 <t...@email.tld>: Recipient address
>      rejected: THis trac does not have an e-mail input functionality. 550 
> Sender
>      verify failed (in reply to RCPT TO command)

Options:

- On your side, don't reject RCPT TO for the no-reply address.

- On your side, add a telepathic policy service that can distinguish
between RCPT TO to verify an address, and RCPT to deliver mail.

smtpd_recipient_restrictions =
    ....
    reject_unauth_destination
    check_policy_service unix:/some/where/telepathic-service
    check_recipient_access inline:{
        { t...@email.tld = reject this address does not receive email }
    }

        Wietse

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