Hi,
A. If you use serial migration to migrate public folders, then Mail-enabled public folders that are created after a public folder migration is started won't be mail-enabled in the destination organization. You'll need to manually mail-enable
these public folders manually when the migration is complete. This also applies to public folders that existed prior to migration starting, but were mail-enabled after migration started.
Refer from
https://technet.microsoft.com/en-us/library/jj150486(v=exchg.150).aspx
B. After these public folder are enabled, then check these mail-enabled public folders SMTP address.
If they are also mismatched, please check if the emailaddresspolicy is assigned to them with the following command
Get-MailPuclicFolder PF path | fl EmailAddressPolicyEnabled
If the value is true, then set this value to false and use the following command to correct them (or check email address policy)
$allPF = Get-MailPublicFolder -Resultsize unlimited
Foreach ($PF in $allPF)
{Set-MailPublicFolder -Identity $PF.identity -PrimarySmtpAddress ($PF.alias+@company.com)}
Best Re