FIX: ‘Invalid Parameters’ error returned to sender when sending via Zetafax SMTP Server
This Zetafax technical note applies to:
When sending a fax from an email client using the Zetafax SMTP Server, a user receives a status reply stating that the fax was rejected, with the following text seen in the message body: ‘Status code: Internal error - Invalid parameters’
This can be caused by one or both of the following:
1. The Zetafax SMTP Server is receiving an SMTP stream that has multiple line breaks in the FROM field. As a result, the Zetafax SMTP Server does not parse this field properly and only a partial address is forwarded onto the Zetafax Server. The truncated FROM address can be seen in the Zetafax Server Monitor as the following line: ‘Message from:’ (note that there is no data). A working system will display the following log line: ‘Message from: email@example.com’.
2. Email addresses have not been properly populated on the Zetafax Server. The Zetafax Server expects a certain format in order to recognise a valid SMTP address. The format is as follows: ‘smtp:Display Name <firstname.lastname@example.org>’ (the opening and closing braces are key indicators for the SMTP parsing).</email@example.com>
- An update is available here to address the first issue. This includes a fix to allow Zetafax SMTP Server to parse addresses with line breaks correctly.
- Please refer to ZTN1418 for instructions on importing a list of SMTP users and enabling them.
This behaviour was corrected in the update and technote detailed above.
Last updated: 10th August 2016 (NT)
Keywords: Carriage return rejected