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mark the beginning of the byte, but the stop bit can be a single 1, or two bits each with a
value of 1.
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Time-out: Set the time in seconds the PReS Workflow process waits for the transfer of
bytes in the data file before ending the transfer of this file. On a time-out, partially received
data files are not passed to the rest of the process; the Serial input resets, ready to receive
further data files.
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Job delimiters: Enter the strings that tell PReS Workflow the data file being retrieved through
the Serial input is complete. Each line in the Job delimiters text box is a different delimiter. You
can enter as many delimiters as you want, one per line. The three default delimiters that appear
are three of the most commonly recognized end of a file delimiters.
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Log (verbose): Select to keep a log of errors and other information related to the Serial input.
Since these messages can accumulate, you have the option of not logging them.
SMTP Input preferences
The SMTP Input preferences control the server protocol aspects of the PReS Workflow SMTP Input
tasks. This is where you enable and configure secure communication for the SMTP Server.
To open the Preferences dialog, click the PReS Workflow button and then the Preferences button, or
use the key combination Ctrl+Alt+P. The SMTP Input plugin preferences can be found under Plug-in.
Preferences
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Port: Select the port to use. The default port is 25.
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Enable server for TLS encryption: Check this option to enable secure data exchange over the
Web. This enables the boxes below and lets you specify your secure communication settings.
Note: The Root certificate, Certificate and Key files must be in the PEM format (ASCII
base64 encoded). Files in DER format, the binary encoded version of the PEM format, can-
not be used to configure Workflow, although they may have the same file extension (e.g.
.crt, .cer). Please check the format of your files, using a tool like: https://www.ht-
tpcs.com/en/ssl-converter.
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Root certificate: Enter the absolute path to the public key certificate identifying the root cer-
tificate authority. The file generally has a .crt extension.
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Certificate: Enter the absolute path to the public key certificate identifying the certified server.
The file generally has a .crt extension.
Note: If the Root Certificate and Certificate file are identical, this is considered a self-
signed certificate, which is considered unsecured by most browsers.
For more information about certificates see: "Obtaining a certificate" on page31.
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