Recovering the customer email which might got bounced through postmaster@simplyleaf.com

Recovering the customer email which might got bounced through postmaster@simplyleaf.com

Dear Sir/Madam,

We @ www.simplyleaf.com have an email account which we published for our customers with which they were communicating since long time (1 year and more). Couple of days back, I have added entries in my domain configuration to include DNS entries which allows the Microsoft office 365 mail servers too to have access and use the domain www.simplyleaf.com.  That was just a try from my side to test the trial version of office 365 in my mac.  Since that configuration change, we were not receiving any emails to the account hallo@simplyleaf.com which we have in Zoho, I came to know this only today!

I tried testing by sending a test email from my personal emailid and got the bounce mail from postmaster@simplyleaf.com

Request: I would like to retrieve all the mails that got bounced this way from my precious customers during this period (28.02.2014 to 05.03.2014) so that I could contact them back and follow them again. How could I achieve this?

any help is greatly appreciated, for any questions please write back to me.

P.S:  I have removed the office365 specific entries from the domain server now and since then I could receive the emails in hallo@simplyleaf.com but my concern is the lost emails which got bounced during the period

best regards
Bathra
www.simplyleaf.com