Righto !
Assuming I understood you right. Here's what I think your settings should be.
http://host_name/server-manager:
E-mail retrieval (as specified by the fetchmail site)
E-mail retrieval mode: Multi-drop
Delegate mail server: left blank
Secondary mail server: fetchmail site doesn't say what to use, if anything (I have it blank and SME filled in mail.myisp.xxx)
POP user account (for multi-drop): anything
POP user password (for multi-drop): anything
Check intervals: whatever you want
Fetchmail Users (Multi Drop System)
Enable E-smith MultiDrop (override following): NO
Do you want to use MultiDrop System: NO
Server Name for Multidrop: Not Applicable
Account User for Multidrop: Not Applicable
Password for Multidrop: Not Applicable
Enveloppe delimiter: left blank
(Modify user fetchmail account : )
Do you want to debug this account: no
Spy this account via admin account ?: no
What action to do with the mails on server(s): Read and flush all --- This means collect and clear mails from your ISP's mail server
What action with the mails to forward: Get mails only
Account name to forward (xxx@yyy.zzz): left blank
(Modify user fetchmail account : Mails boxs)
Mail server: ISP's mail server
Server type: pop server ---- Most ISP's are setup as POP servers
Account name on server: I assume my ISP email account
Password on server: I assume my ISP email password
Then repeat the last 4 for as many Pop accounts as THIS user has.
Repeat for each user your created on your server that has mail to be collected from the internet.
Don't worry about maillog. It gets rotated automatically. To just view the last few lines, use --- tailf maillog.
Kelvin