OT meaning in Email ?

Answer: What is Off Topic mean?

In the context of mailing lists, discussion groups, discussion forums, bulletin boards, newsgroups, and wikis a contribution is off-topic if it is not within the bounds of the current discussion, and on-topic if it is.

Even on very specialized forums and lists, off-topic posting is not necessarily frowned upon, but a common netiquette convention is to mark a new off-topic posting or email by beginning it with "OT" - for example in a forum discussing the Linux operating system someone might post: "OT: Wow, did you feel that earthquake?".

Posting off-topic messages to deliberately aggravate other members is a form of trolling.

reference

Full Form	Category
Optimality Theory	Academic & Science
Only Trilogy	Academic & Science
Office of Telecommunications	Academic & Science
Overflow Threshold	Academic & Science
Organisation Todt	Associations & Organizations
Open- Top (container)	Business
Option Taken	Business
Orange Thing	Business
Over Top	Business
Omega Team	Business
Obsolete Thinking	Business
Over Technical	Business
Open Top	Business
Office Tower	Business
On Target	Business
Old Tools	Business
Other Topic	Community
Our Town	Community
Out of Tune	Community
Old Testament	Community
Occult Truth	Community
Old Time	Community
Original Trilogy	Community
Out of Town	Community
Operating Thetan	Community
One Time	Computer Assembly Language
Oblivious Transfer	Computing
Operational Transformation	Computing
Organizational Training	Computing
Operational Technology	Computing
DITA Open Toolkit	Computing
Open Trapdoor	Computing
Operator Terminal	Computing
Object Type	Database Management
Overload Time	Electronics
Optical Transient	Electronics
Off Topic	Email
Only Topic	General
Offensive Tackle	General
Only This	General
Of Time	General
One True	General
Opportunistic Tessa	General
On Tings	General
Old Thread	General
Orange Tip	General
out The	General
Overtime Time	General
outlays in the	General
Obrněný Transportér	Governmental
Obrnený Transportér	Governmental
Open Target	Governmental
Other Tenants	Governmental
Open Transport	Governmental
Other Torts	Governmental
Office of Transportation	Governmental
Oklahoma Territory	Governmental
Oregon Territory	Governmental
Original Transcription	Governmental
Official Translation	Governmental
Outer Tracker	Governmental
Old Town	Governmental
Operational Instrumentation MDM (Manipulator Deployment Mechanism) -Tank	Governmental
Occupational Therapy	Healthcare
Ordinanza Telegrafica	International
Ohne Themenbezug	International
Organizaci? Trotskista	International
Organización Trotskista	International
ÖLüm Tarihi	International
Originating Topic	Internet
Occupational Transfer	Jobs
Occupational Therapist	Jobs
Old Timer	Jobs
Opportunity Transfer	Jobs
Other Terms	Maths
Operation Theatre	Medical
Objective test	Medical
Old Tuberculin	Medical
Operating Theater	Medical
Observing Tool	Medical
Orthostatic Tremor	Medical
Occlusion Time	Medical
Olfactory Threshold	Medical
Omeprazole Test	Medical
Open Tracheostomy	Medical
Optic Tract	Medical
Oral Tolerance	Medical
Orthopaedic Treatment	Medical
Other Things	Messaging
On Topic	Messaging
Off Theme	Messaging
Open Topic	Messaging
Operations and Training	Military and Defence
Operational Test(ing)	Military and Defence
Officer Trainee	Military and Defence
Original Trainer	Military and Defence
Opportunities and Threats	Military and Defence
Operación Triunfo	News & Entertainment
Operation Transformation	News & Entertainment
Occupancy Threshold	Real Estate
Oyu Tolgoi	Regional
Oklahoma and Texas	Regional
Old Technology	Softwares
Operating Time	Space Science
Operational Instrumentation Mdm-tank	Space Science
Operational Test	Space Science
Operational Trajectory	Space Science
Optical Tracker	Space Science
Out Temperature	Space Science
Overtime	Space Science
Outdoor Track	Sports
One Thrown	Sports
Old Trafford	Sports
Orphan Trader	Stock Exchange
Aeropelican Air Services	Transport & Travel