can't send email can't send email

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Post can't send email
di lethunder su martedì 28 novembre 2023

I just transfer my domain from gandi and i can't send any email. It keeps returning

Your message did not reach some or all of the intended recipients.

Sent: Tue, 28 Nov 2023 08:18:49 +0000
Subject: test

The following recipient(s) could not be reached:
Error Type: SMTP
Remote server ( issued an error.
hMailServer sent: .
Remote server replied: 550-5.7.26 This mail has been blocked because the sender is unauthenticated.
550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM.

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giovedì 20 giugno 2024 04:43