I used the MessageUI framework to send the mail with attachment from my application. But i got the following error,
2009-09-07 19:52:23.483
This error seems to be related to the running mail int he simulator and not to your code. Even stock Apple's sample MailComposer reports identical error in the simulator:
2009-11-12 20:30:39.270 MailComposer[7426:4f1f] Error loading /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/DataClassMigrators/AccountMigrator.migrator/AccountMigrator: dlopen(/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/DataClassMigrators/AccountMigrator.migrator/AccountMigrator, 265): Library not loaded: /System/Library/PrivateFrameworks/MobileWirelessSync.framework/MobileWirelessSync
Referenced from: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/DataClassMigrators/AccountMigrator.migrator/AccountMigrator
Reason: image not found
2009-11-12 20:30:39.271 MailComposer[7426:4f1f] [+[AccountsManager _migrateAccountsIfNeeded]] Accounts migration failed