mailbox unavailable unable to relay

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
mailbox unavailable unable to relay	0.41	0.8	9612	80	35
mailbox	0.49	0.8	691	87	7
unavailable	1.58	0.6	8190	41	11
unable	0.83	0.5	1621	6	6
to	0.95	0.6	2628	3	2
relay	0.86	0.2	2304	76	5

Keyword	CPC	PCC	Volume	Score
mailbox unavailable 5.7.1 unable to relay	0.96	1	7657	1
mailbox unavailable or not local	1.94	0.8	8182	12
exchange unable to relay	1.63	0.4	385	62
why is my mailbox unavailable	1.16	0.1	4590	72
unable to relay due to relay restriction	1	0.4	5351	61
unable to connect to relay host	1.2	0.6	2891	32
unable to relay without authentication	0.57	0.3	6920	91
mailbox unavailable or access denied	0.44	0.2	7539	23
unable to add mailbox	0.41	1	1501	62
service unavailable mailbox full	0.22	0.1	2286	7
mailbox unavailable. the server response was	1.72	1	7046	54
relay module not working	1.15	0.3	7786	42
cannot get mail connection unavailable	1.67	0.2	3993	87
relay could not connect	1.02	0.1	4919	35
email does not allow relaying	0.95	0.6	6049	23
we dont relay mail	0.92	0.5	4325	6
failed to get mailbox	0.17	0.7	3881	83
relay not permitted email	1.08	0.2	2334	89
private relay is temporarily unavailable	0.97	0.7	2840	42
550 5.2.0 mailbox unavailable	1.05	1	2014	85
the mailbox is not available	1.44	0.7	9862	23
mail relay access denied	0.7	0.3	8622	24
5.7.1 unable to relay	0.43	0.1	3367	47
5.7.1 unable to relay without authentication	1.22	0.3	7090	39
550 5.1.1 mailbox unavailable	0.37	0.3	1222	62
5.7.54 smtp unable to relay	1.11	0.8	4266	23
554 5.0.0 service unavailable mailbox full	0.04	0.1	9497	84