Equisys Technical Notes

Technical guidance, explanations and fixes for our products

PRB: Faxes sent from SMTP Mail users with similar smtp addresses send from wrong user



ID: ZTN1781

This Zetafax technical note applies to:

  • Zetafax 2009 with Zetafax SMTP Server


If you have mail users with similar smtp addresses, faxes may be sent from the wrong user.

For example if you have 2 Zetafax users Mary M Smith and Mark Smith, with smtp addresses mmsmith@equisys.com and msmith@equisys.com respectively.

A fax sent via SMTP from Mark actually sends from Mary’s behalf.


When a fax is sent via SMTP, Zetafax server looks at the maillist.ini for smtp address entries associated with Zetafax users. It maps the first entry it finds to a Zetafax user as the sender of the fax but does not look for exact matches.

For example, if a fax from msmith@equisys.com is being processed and the maillist.ini shows an entry at the top for mmsmith@equisys.com, it will associate the fax with this user.


Change the order in which the users are listed in the maillist.ini (located in \Zetafax server\System\Z-DB folder). In the above example, you should ensure that msmith@equisys.com appears above mmsmith@equisys.com in the file like this:

Zetaname: MARKSMIT
Emailname: smtp:msmith@equisys.com
Profile: NO

Zetaname: MARYMS
Emailname: smtp:mmsmith@equisys.com
Profile: NO


This has been identified by Equisys as a problem with the software versions given above.

Last updated: 10th May 2010 (AC/MW)

Keywords: SMTP Wrong sender


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