bayes_toks.expire###### 1.9 gigs worth!

[Brian Lewis]

Mailscanner 4.26.8
SpamAssassin 2.63

After 10 days since the install I have over 1.9 gigs worth of
bayes_toks.expire##### files sitting in /root/.spamassassin/

Why are these being created?  Can I delete them?  How can I prevent the
system from creating them?


-rw-------    1 root     root      4530176 Feb 12 06:16
bayes_toks.expire9400
-rw-------    1 root     root      5255168 Feb 12 19:14
bayes_toks.expire9491
-rw-------    1 root     root      5292032 Feb 13 13:36
bayes_toks.expire9525
-rw-------    1 root     root      5259264 Feb 12 19:19
bayes_toks.expire9590
-rw-------    1 root     root      4550656 Feb 12 06:22
bayes_toks.expire9610
-rw-------    1 root     root      5140480 Feb 13 10:37 bayes_toks.expire968
-rw-------    1 root     root      5259264 Feb 12 19:24
bayes_toks.expire9690
-rw-------    1 root     root      5173248 Feb 13 13:42
bayes_toks.expire9760
-rw-------    1 root     root      5259264 Feb 12 19:30
bayes_toks.expire9763
-rw-------    1 root     root      4546560 Feb 12 06:28
bayes_toks.expire9786
-rw-------    1 root     root      5259264 Feb 12 19:36
bayes_toks.expire9863
-rw-------    1 root     root      4546560 Feb 12 06:33
bayes_toks.expire9963
-rw-------    1 root     root      2879488 Feb 13 13:47
bayes_toks.expire9978
-rw-------    1 root     root      5259264 Feb 12 19:41
bayes_toks.expire9982