You can refer its value in `wl-draft-config-alist'.
e.g.
-(setq wl-draft-config-alist
+\(setq wl-draft-config-alist
'(((string-match \".*@domain1$\" wl-draft-parent-folder)
(\"From\" . \"user@domain1\"))
((string-match \".*@domain2$\" wl-draft-parent-folder)
(wl-draft-write-sendlog 'failed 'smtp smtp-server
recipients id)
(if (and (eq (car err) 'smtp-response-error)
- (/= (nth 1 err) 334))
+ (= (nth 1 err) 535))
(elmo-remove-passwd
(wl-smtp-password-key
smtp-sasl-user-name