Fixed #1022: Defect - standard email aliases not created while adding domain alias

    [feedquote='i-MSCP Github (stable) (nuxwin)','https://github.com/i-MSCP/imscp/commit/ea9aeeb6bc9ae4114edd595e3ba67d95efd02ce0']

    Code
    1. Fixed #1022: Defect - standard email aliases not created while adding domain alias

    [/feedquote]