The 16 Class 325 4-car EMUs were introduced in 1995 for postal services on 25kV AC and 750V DC electrified routes. They were owned by Royal Mail and operated by DB Cargo between Willesden, Warrington and Shieldmuir. Mail trains ceased in 2024 and several 325s have since been scrapped.
- Class 320, 321, 322
- Class 421 4-CIG
- Class 442
- Class 423 4-VEP
- Class 156
- Class 180
- Class 707
- Class 150
- Class 350
- Class 185
- Class 319, 769
- Class 397
- Class 491 4TC
- Class 701
- Class 455, 456
- Class 168 & 170-172
- Class 345
- Class 458
- Class 375, 377, 379, 387
- Class 390
- Class 800 - 810
- Class 158, 159
- Class 444, 450
- Class 165, 166
- Class 220, 221, 222