what does utf mean on returned mail

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does utf mean on returned mail	1.54	0.8	125	86	35
what	1.62	1	5377	43	4
does	0.67	0.8	7028	76	4
utf	0.87	1	8301	6	3
mean	1.89	0.3	8622	80	4
on	0.54	0.3	1098	64	2
returned	1.67	0.7	3760	58	8
mail	0.73	0.4	6821	5	4

Keyword	CPC	PCC	Volume	Score
what does utf mean on returned mail	1.92	1	2587	50
what does utf on mail mean	1.61	0.6	5196	6
what does utf mean on postal mail	0.42	0.2	448	71
what does utf stand for on mail	0.75	0.3	2815	99
utf written on return mail	0.56	0.1	7530	39
utf meaning on mail	1.67	0.1	7455	22
utf on mail stands for	1.85	0.4	2861	83
what does utf mean in post office	1.55	0.1	4321	92
usps what does utf mean	0.22	0.8	9017	84
utf on package from mail	0.45	0.4	4645	8
what is utf in postal service	0.6	0.3	2306	91
utf abbreviation for mail	1.78	0.5	7392	65
utf meaning post office	1.58	0.1	4892	24
return to sender utf	0.64	0.9	7474	76