I have a google group with a bunch of users-- everything is great until today one of my users tells me she was trying to post something and got a bounce back from the google group.  In the bounce-back, it says Technical details of permanent failure: The account xxxx is disabled.When I look at the user in the list of members (using the new google group interface), it says Disabled (in red letters) for her in the Delivery column.  When I click on her entry, everything looks normal except that the first Posting permission option is Default group policy: member is not allowed to post (emphasis mine).  This is doubly odd since 1) the default group policy is that all members are allowed to post and 2) she was last able to post something to the group about 2 weeks ago without incident (and without any changes to her subscription by the list owner-- me).I've tried setting the user's Posting permission to Override: member is allowed to post to no avail; she still gets the account ... is disabled bounceback.I've tried deleting the user from the group and then putting her back on using a direct add.  She still shows as disabled and gets the same bounceback.I checked to make sure she's not on the banned list; she's not.  Just for kicks, I tried banning her and then unbanning her, then direct adding her again.  She still shows as disabled.The only reference I can find around the web about an account being disabled mentions that this can happen if the user sends 500+ messages in a 24-hour period.  This user assures me she's done no such thing.How can I re-enable this group member's subscription?Update: I deleted the user from the list and she then used the google groups website to re-subscribe.  In doing so, she said that the site told her that there had been suspicious activity on her account and required her to provide some sort of credentials.  The subscription request came in for approval and the user is now showing as being a regular (albeit new) subscriber.
How to re-enable a disabled google groups member
google groups
It seems to me that here, disabled is referring to a global (google-wide) status across the whole Google account -- that the suspicious activity was detected and Google was just waiting for the account to be re-activated before they start accepting mail from it again (consider the case of someone else using it to send spam - you want to block the account until the problem is fixed).