Send mail is okay.
I’m not receive any mail.
mxtoolbox:
220 box.****** ESMTP Hi, I’m a Mail-in-a-Box (Ubuntu/Postfix) [641 ms]
EHLO PWS3.mxtoolbox.com
250-********
250-PIPELINING
250-SIZE 134217728
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN [641 ms]
MAIL FROM:<****@*****>
250 2.1.0 Ok [641 ms]
RCPT TO:<****@*****>
554 5.7.1 <****@*****>: Relay access denied [751 ms]