Message not Delivered notifications for Agenda emails

I've been getting the below message when I send out agenda emails using the agenda webpage on the Wascana Club #577 website wascana.toastmastersclubs.org/
From what I can tell our members have been getting the email, but I'm hoping there isn't anyone who is missing the agenda emails.
It's occurred January 11, January 16, and January 21. When filling the email form out, I clicked the checkboxes for "All members", "VP Ed" and "President". Our VP PR has said he's gotten some similar emails, unsure if it was related to the agendas or just the members email. Thanks!


date: Sat, Jan 11, 2014 at 5:50 PM
subject: Message Not Delivered: Subject: [577-282047] Wascana Toastmasters Club # 577 Meeting Agenda for January 14, 2014
mailed-by: toastmastersclubs.org
: Important mainly because of the words in the message.


The following recipient cannot be reached unsubscribed@toastmastersclubs.org
550 No such user here

Please note: We do not support the use of BCC. If you are sending to an email address on this server using BCC please re-address using To or CC and try again.

one of your members has removed their email address and an email address of unsubscribed@toastmastersclubs.org is showing.

Keith Lee unsubscribed@toastmastersclubs.org

Nice catch Brian! That is a new one on me.

Thanks, I've fixed it & he is now able to receive the emails. Unsure how the email address got changed, he didn't change it, unless it's possible he accidentally hit the "unsubscribe" button...

Unfortunately, the unsubscribe links in emails are still "live" even after someone becomes a member.

It is one of the things I hope to soon address by reworking the opt out/unsubscribe code.