Where is this text?

When a subscriber attempts to unsubscribe from his new address rather that the one for which he is subscribed, he receives the following message from SmartList:

You have not been removed, I couldn't find your name on the list.

If it wasn't your intention to unsubscribe, or if you are having

problems

getting yourself unsubscribed, reply to this mail now, quoting

it entirely (for

diagnostic purposes), and of course adding any comments you see fit.

Transcript of unsubscription request follows:

I would prefer to change the wording (not least because it sounds as though it comes frm a human source rather than a robot), but I do not know in which file this text resides. Can someone tell me so I can edit it?