Today I read your comment and retested a defect on JIRA (OPPK-3281), this defect can reproduce on both mail client and device. I attached screenshot from mail client. I think it is mail client issue, Could you please verify it again?
And I worked a tracker “SWS-C4.6.3-BES12 v3.6.41-Android v5.0 and 4.4.4-PIM Tier 1 Domino-10.0.0.xxx_S10294622” , passed 15 TCs and blocked 1TC. I do not found an issue and result are not fail in this tracker.
Tomorrow I will absent to go to university. If you have any questions, please let me know.