IBM

List of most popular Email Client user agents of IBM

UseragentInfo
Mozilla/4.0 (compatible; Lotus-Notes/5.0; Windows-NT)
Lotus-Notes/4.5 ( Windows-NT )
Mozilla/4.0 (compatible; Lotus-Notes/6.0; Macintosh PPC)
Mozilla/4.0 (compatible; Lotus-Notes/6.0; Windows-NT)