Email failure after upgrade to 3.6

[BizTaxMan]

Since I upgraded to v3.6 my email notification of BU completion fails with this message: 12/15/09 9:52:24 AM:[1001][E] Failed to send e-mail: "APBU@olypen.com" [OLYPEN - You cannot send mail from <24.113.212.231>. Try enabling SMTPauthentication] - However, I have no clue what this means, the ID is not that of my computer.

[support]

Hello

Open APBackup->Options dilaog and enter correct User name and password on the "e-mail" panel then press "Test SMTP" button. Is this test OK?

[BizTaxMan]

No, but Thunderbird update eliminated the problem; it was not APBackup problem.