Mail process taking forever Suspended Process - msdb.dbo.sp_readrequest;1

Finding a process taking forever  in the suspended state, I wondered what it could be.
Fortunately Irina Tudose had already done the hard work for me.  It is a process used by the mail procedures in msdb. She recommends changing the default value for DatabaseMailExeMinimumLifeTime to resolve this.

See also

SQL Server: Why a Session With sp_readrequest Takes so Long to Execute

UPDATE msdb.dbo.sysmail_configuration

SET paramvalue = 60 --60 Seconds

WHERE paramname = 'DatabaseMailExeMinimumLifeTime'