Cannot connect to mail server

Hello all,

I cannot connect to the mail server to check mail. When I run "mysqlcheck eximstats" as follow:

root@server [~]# mysqlcheck eximstats
eximstats.defers OK

eximstats.failures
warning : 2 clients are using or haven't closed the table properly
status : OK
eximstats.sends
warning : Table is marked as crashed
warning : 2 clients are using or haven't closed the table properly
error : record delete-link-chain corrupted
error : Corrupt
eximstats.smtp
warning : Table is marked as crashed
warning : 2 clients are using or haven't closed the table properly
error : Size of indexfile is: 310153216 Should be: 310159360
error : Size of datafile is: 1533511741 Should be: 1533554105
error : Corrupt

How could I fix it?

"mysqlcheck --repair eximstats" This command can fix it. Any problem after run this command?

Thanks all!