email_alerts login password value

when I set email alerts settings logs contains

email_alerts ->
[

{recipients,["MYEMAIL@gmail.com"]}

,

{sender,"couchbase@localhost"}

,

{enabled,true}

,
{email_server,[

{user,"MYEMAIL@gmail.com"}

,

{pass,"PASSWORD"}

,

{host,"gmail.com"}

,

{port,25}

,

{encrypt,false}

]},

{alerts,[auto_failover_node,auto_failover_maximum_reached, auto_failover_other_nodes_down,auto_failover_cluster_too_small,ip, disk,overhead,ep_oom_errors,ep_item_commit_failed]}

]