After having a look at the file you sent me I figured it out:
Your file came in this format:
'John','Doe',john@doe.com,'12.34.56.78','06 05 06 19:16'
'Jane','Doe',jane@doe.com,'12.34.56.78','06 05 06 19:16'
ListMail cannot import this type of file due to the single quotes (we need double) and lack of quotes around a single field.
To import these leads you will need to reformat the file. I have done this successfully using Excel, as follows:
1. Load a new blank workbook
2. Click Data -> Import External Data -> Import Data
3. Browse to and select your list text file
4. Click "Next" to choose "Delimited" format
5. Uncheck "Tab" and check "Comma". In the "Text qualifier" field change it from the double quote to the single quote, then click "Next"
6. Click "Finish"
7. Click "OK" and your data will be imported into Excel
8. Click "File" -> "Save As"
9. Under "Save as type" scroll down and choose "CSV (Comma delimited) (*.csv)"
10. Save the file
11. Import into ListMail!
Please let me know if I can be of further assistance!
Regards