Exchange 2013 - inbound email was accidently sent (received) on port 2525 - accepted but no email in mailbox - wrong receive connector picked it up

We switched to Exchange 2013 recently but on our last exchange 2010 we were receiving inbound external emails on a port we though was unique – port 2525 (from our backupmx/antispam service)

Come to find out later - Exchange 2013 has two “Default” receive connectors.
1.      Default SERVERNAME FrontEnd (frontend transport) port 25
2.      Default SERVERNAME  (hub transport) port 2525

Anyway I didn’t stop to think to change the receiving port from the old 2525 to 25 (at the backupmx/anti-spam service) and the inbound relay was sending new email to port 2525 and Exchange 2013 accepted 2 days of external email on port 2525 instead of 25.  So the hubtransport (2525) accepted the mail but I have no idea what it did with it – it’s not in any of the mailboxes (50+ users)…

I end up having the inbound antispam service send email to exchange on port 25 (frontend transport connector) and I am getting all new emails delivered properly to their mailboxes now….

But I would like to recover whatever Exchange received on port 2525 (the other default receive connector – frontend) for the past 2 days.

Is it gone/trashed/lost on Exchange forever?

Can anyone help with this issue?  Thank you
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lnfadminAsked:
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Naushad shaikhIT Consultant - Messaging SupportCommented:
If CAS & MAILBOX server role are installed on the same server then only port 2525 will be used instead of 25 What happens to email you can check by email tracking and you will find that the recipients are having those emails in their inbox
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lnfadminAuthor Commented:
Actually both are still running 25 and 2525... and I can accept on 25 just fine now as I mentioned.

The issue is the lost email that was accepted on port 2525.
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Amit KumarCommented:
Once mails are through the connector and delivered to mailboxes then you can only recover it from mailboxes or recipients.

Still you check in Exchange toolbox queue viewer if there are are any e-mail stuck. if not then there will not be any way to recover them .
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lnfadminAuthor Commented:
No answers.  I guess any email received by the wrong receive connectors (port 2525) on EXCHANGE 2013 WILL TRASH/DELETE YOUR EMAILS once accepted.  Not very smart on Microsoft's part but probably never happens for most people.
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lnfadminAuthor Commented:
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