SMTP Rule in Access-List

[secureinc]

I need to add a statement to my access-list to only allow email from the following outside mail server. 12.12.x.x
My current access-list is as follows:
access-list 101 permit tcp any any eq www
access-list 101 permit tcp any any eq smtp
access-list 101 permit tcp any any eq pop3
access-list 101 permit tcp any any eq 443
access-list 101 permit icmp any any
access-list 101 permit tcp any host 199.72.x.x eq 5631
access-list 101 permit tcp any host 199.72.x.x eq 5632
access-list 101 permit udp any host 199.72.x.x eq 5631
access-list 101 permit udp any host 199.72.x.x eq 5632
access-group 101 in interface outside

Any help would be greatly appreciated!!! Thank you!!!

 

[mwanazed]

the following should do it!

no access-list 101 permit tcp any any eq smtp
access-list 101 permit tcp host 12.12.x.x any eq smtp