Yes, this domain seems to be configured correctly to accept inbound mail.
But keep in mind, this doesn't identify spamtraps nor did we test individual addresses.
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spam folder placement, DMARC, DKIM or SPF authentication? Check out
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Hosting:
Inbound mail for crew-united.com is hosted by ispgateway.de
ispgateway.de hosts mail for at least 29,686 domains, including: