All the friendlier email programs such as Netscape disturb the strict formatting requirements. I am not a control freak and I do try to correct misformed entries, but it's better if it's all right to begin with. Nevertheless a maximum line length of about 80 characters is recommended.
Case is significant.
All other fields should be confined to a single line and should not overflow that or overall formatting of the table may be affected. If you want to include a pager number or other means of contact not mentioned, just put it in the description. If you have a second email address or website to refer people to, you can put tags in the description. For human readable fields, this is minor. But for URL's and email addresses, they will likely not work correctly.