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TestTrack SMTP Send Mail Error #553

Article ID: 328  |  Last updated: 30 Dec, 2014


The SMTP server returns a “malformed address” error.


The SMTP server expects email address to be in the format of This error occurs if the name specified in the user account is in MAPI format (TestTrack 2011.1 and earlier only) or if you add multiple email addresses separated by commas.


Make sure the email address is in the correct format (

  1. Edit users/customers.
  2. Change the email address to use the following format:, using one address per user/customer.
Article ID: 328  |   Last updated: 30 Dec, 2014
SMTP malformed address 553

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