I need ONE mailbox to received at my domain for SSL domain validation, how ?

I’m newby, and want to use SSL for my domain, that processing need email with my domain for domain validation (postmaster, webmaster or hostmaster). I can send email from, but could not received from other email (gmail).

I have install postfix, dovecot, and tried to install Ajenti, floxlor, vestaCP, zpanel, postfixadmin, etc… (I read several articles from this community). success installation (?) but still could not received email from others… very-very frustated…

at last I tried instructions at this article : but still failed (I check at /var/log/mail.log but don’t understand that)

This is email bouncing after I sent from gmail to mydomain :

Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the server for the recipient domain by [].

The error that the other server returned was: 550 5.1.1 Recipient address rejected: User unknown in virtual mailbox table …

I only need ONE mailbox just for received from SSL provider to domain validation. May anyone can help to setup received email easily (forwarding email is enough),

thanks before

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What’s the output of the following command? <br><pre>sudo grep -i ‘virtual’ /etc/postfix/*.cf</pre> <br>It should list a few lines with one or two of them pointing to a file in <code>/etc</code>. Can you pastebin the contents of this file?

this is at /var/log/mail.log : <br> <br>May 23 19:41:00 mail amavis[1079]: (01079-02) Passed CLEAN, [] ->, Message-ID:, mail_id: dHSx+dQr5UQ8, Hits: -0.09, size: 3053, queued_as: 0D4FDC0FCB,, 23004 ms <br>May 23 19:41:00 mail postfix/smtp[2166]: 59B87C0FC5:, relay=[]:10024, delay=41, delays=18/0.01/0.02/23, dsn=2.0.0, status=sent (250 2.0.0 from MTA([]:10025): 250 2.0.0 Ok: queued as 0D4FDC0FCB) <br>May 23 19:41:00 mail postfix/qmgr[1729]: 59B87C0FC5: removed <br>May 23 19:41:00 mail dovecot: lda( saved mail to INBOX <br>May 23 19:41:00 mail postfix/pipe[2173]: 0D4FDC0FCB:, relay=dovecot, delay=0.08, delays=0.02/0.01/0/0.05, dsn=2.0.0, status=sent (delivered via dovecot service) <br>May 23 19:41:00 mail postfix/qmgr[1729]: 0D4FDC0FCB: removed <br>May 23 19:41:22 mail postfix/smtpd[1844]: timeout after END-OF-MESSAGE from localhost[] <br>May 23 19:41:22 mail postfix/smtpd[1844]: disconnect from localhost[] <br>May 23 19:43:57 mail postfix/anvil[2160]: statistics: max connection rate 1/60s for (smtp: at May 23 19:40:16 <br>May 23 19:43:57 mail postfix/anvil[2160]: statistics: max connection count 1 for (smtp: at May 23 19:40:16 <br>May 23 19:43:57 mail postfix/anvil[2160]: statistics: max cache size 1 at May 23 19:40:16 <br>