recipient primary smtp address is missing

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
recipient primary smtp address is missing	0.66	0.6	8397	31	41
recipient	0.28	0.6	1195	65	9
primary	1.92	0.4	7609	18	7
smtp	1.92	0.3	4816	27	4
address	0.93	0.6	4015	47	7
is	1.31	0.1	4663	65	2
missing	1.94	1	4365	61	7

Keyword	CPC	PCC	Volume	Score
recipient primary smtp address is missing	1.82	0.5	7540	54
there is no primary smtp address	1.35	1	2449	46
recipient not found by smtp address lookup	0.49	0.6	7677	31
message is missing sender's address	0.32	0.9	3385	85
send to mail recipient option missing	1.81	0.7	9538	76
change primary smtp address	1.2	0.6	735	86
there are multiple primary smtp addresses	0.48	0.4	322	9
send to mail recipient missing	1.19	0.6	7592	37
smtp 550 5.4.1 recipient address rejected	1.1	0.4	79	37
recipient not at this address	0.76	0.2	3818	64
a recipient must be specified smtp	1.23	0.3	1305	92
smtp undefined no recipients defined	2	0.8	2885	51
smtp mail sent but not received	1.35	0.7	774	15
smtp server address not defined	0.46	0.7	6760	57
smtp error data not accepted	1.8	0.3	5973	79
smtp server address fix error	0.67	0.9	1675	47
not found by smtp address lookup	1.16	0.2	9756	70
mail no recipients specified	0.59	0.5	5942	16
smtp relay not sending to external addresses	1.47	0.6	266	48
smtp command not recognized	0.61	0.4	2842	42
smtp-auth requested but missing secret phrase	1.02	0.9	8721	60
list of smtp error codes	1.49	0.1	6450	63
smtp couldn't find any host	1.22	1	5874	77
non-deleted smp entry not found in tc	0.07	0.9	5940	5