Below are known issues that may be affecting some Groups users:
Hotmail Update: Good News & Bad News (current forecast: scattered showers)
The Good News
Hotmail used to reject some messages sent from Yahoo! Groups because they exceeded 15 "hops" (the default limit set on Exchange Server to prevent mail loops, which Hotmail refused to reset to a higher, more appropriate level: http://kb.iu.edu/data/beha.html?osecat=email)
. This would happen most often in groups that moderate messages, since the moderation process causes more hops within our system.
But we've recently made changes to the way hops information is presented in Yahoo! Groups headers, so that this 15 hops limit should no longer be an issue. These changes should mean far fewer bounced messages to Hotmail members.
The Bad News:
In the last couple of weeks Hotmail has adjusted their filters in a way that is pretty much blocking all "invitations" sent from Yahoo! Groups. And despite our attempts to get them to stop this blocking, we’ve not yet seen them lift this block:
So we have two recommendations:
1. If you’re sending invitations to Hotmail users through the Yahoo! Groups system, consider also sending them a direct email (from your own email) either pointing them to the group home page and directing them to click the “join” button or point them directly to the join page: http://groups.yahoo.com/group/NAME_OF_YOUR_GROUP/sjoin
2. Encourage your Hotmail users to complain to Hotmail about the problem. Ultimately, they will only take action to fix the problem if enough Hotmail users complain.
Calendar Reminders (current forecast: clear skies ahead)
We’ve recently seen a surge in reports of calendar reminder problems affecting approximately 20% of our users. The Calendar team pushed a fix on Tuesday that should have corrected this issue. Let us know if you are still experiencing this issue by commenting below or submitting a report to Customer Care: http://help.yahoo.com/l/us/yahoo/groups/original/forms_index.html
One thing to be aware of is that if someone posts an event to the calendar who is on moderation status, a reminder won’t be sent.
Groups Community Manager