In the source environment, there are good amount of Internet Domains such as 150 and they are all selected on Find Domains section.
This causes large amount of alias generated during the Directory Export process along with an address translation file crash.
Unable to compile the addresstranslation.tsv file if it is larger than 2GB.
STATUS
Waiting for fix in a future release of Notes Migrator for Exchange.
WORKAROUND
Select only the Internet Domains will be needed on the target; instead of selecting all the Internet Domains exported during Directory Export process.