I normally don't write plugin authors, but I must say, you have the BEST contact form I have tested, and I have tested MANY. Actually, it is the only one that I can find that will work with Magic Members without conflict, due to the PHP option for SMTP.
Request, on the extra field section in setup, can you add the ability to set the rows of the field type textarea? Meaning, currently, I have the Message Field set to 10 rows. However, in the "Extra field 2" I have a selection that needs the textarea, but 10 rows is way too much. Only need 3 rows.
Also, I noted that in the "Extra field #" section, the entry of "Max Length:" does not work. If I select 70 for one field, and the "Style: (form 1)" section "Input Text Field Size:" is set to 50, the entry of 70 length has no effect? So I don't comprehend having that "Max Length:" option under the "Extra field #" section when it is overridden by the Style setting?
Finally, Can you enlarge width and rows of the "Autoresponder E-mail message" text field? It is seriously too small for editing easily. Just two more rows and little more width would be beneficial.
Again, super developement! Will donate some $$$ when client pays me some $$$.