SMTP port specification

[Haines Brown <haines@histomat.net>]

I'm trying to migrate from mutt to wanderlust (Debian Squeeze). POP3 
works OK, but I am having trouble with SMTP. Messages out don't get 
authenticated:

 Debugger entered--Lisp error: (error
  "mail@historicalMaterialism.info/587 Name or service not known") 
  signal(error ("mail@historicalMaterialism.info/587 Name or service not known"))
  byte-code("... [smtp-server recipients id err smtp-sasl-user-name
  smtp-sasl-mechanisms wl-draft-write-sendlog failed smtp
  smtp-response-error 535 elmo-remove-passwd format "SMTP:%s/%s@%s"
  signal server mechanism user] 6) 
  wl-draft-send-mail-with-smtp()
  wl-draft-dispatch-message()
  wl-draft-normal-send-func(#<buffer +draft/15> t)
  wl-draft-send(t)
  wl-draft-send-and-exit()
  call-interactively(wl-draft-send-and-exit nil nil)

In .elmo/sendlog I have:

  2012/11/24 08:53:44 
  proto=smtp 
  stat=failed 
  server=mail@historicalMaterialism.info 
  to=<gloria@gloriabrownministry.net> 
  id=<87pq33ksyg.wl%Haines@Histomat.net> 

The SMTP server I've been using with exim4 is 
mail@historicalMaterialism.info::587. Isn't wl using exim? If so, why 
do I need anything in .wl? If I remove .wl, I get the same error.

Wanderlust sees the server name instead as 
mail@historicalMaterialism.info\587. Is this slash rather than colon 
for the port the reason the smtp server is rejecting messages?

The 535 SMTP error above is usually name or password, but I get the 
impression it can also be wrong port or service format.

At one time as part of debug I got:

  smtp-response-error 535 elmo-remove-passwd format "SMTP:%s/%s@%s"

and wonder if I need somwhow to define the format of the SMTP server 
name.

When I use .wl, this is what I have:

  ;; mode:-*-emacs-lisp-*-
  ;; wanderlust

  (setq
    elmo-maildir-folder-path "~/Mail"  
    wl-stay-folder-window t            
    wl-smtp-posting-server "mail@historicalMaterialism.info" 
    wl-local-domain "Histomat.net"
    wl-message-id-domain "Histomat.net"
    wl-from "Haines Brown <Haines@Histomat.net>"   
    wl-smtp-posting-port 587                       
  )

Haines Brown