To get a help email for a top-level group (i.e. not a sub-group), send an email to GroupName+help@groups.io. Or use the link on the group homepage.

To get a help email for a subgroup, send an email to SubgroupName+help@GroupName.groups.io

You must substitute the name of your group and subgroup for SubgroupName and GroupName.

Here's the automated reply to my email. 

Clicking on the link on the homepage of my group brings up an email that I must just send. No info needed. (I did get a prompt from my email account about the blank subject line - I ignored it.)

The reply contains: group description, posting email address, how to get group guidelines (if it exists), changing your subscription (email commands), how to contact group owner, 

Group Description

Testing only site for Frances and friends. testing group

Useful tool to see what happens when.....! 

Showing editing.

Posting To This Group

To send a message to this group, send the message to:

main@[GROUPNAME].groups.io

Group Guidelines

To get a copy of the group guidelines, send an email to:

main+guidelines@[GROUPNAME].groups.io

Changing Your Subscription

To join this group, send an email to:

main+subscribe@[GROUPNAME].groups.io

To unsubscribe from this group, send an email to:

main+unsubscribe@[GROUPNAME].groups.io

Email Delivery Options

To receive plain digests instead of individual messages, send an email to:

main+digest@[GROUPNAME].groups.io

To receive full featured digests instead of individual messages, send an email to:

main+fulldigest@[GROUPNAME].groups.io

To receive a daily summary instead of individual messages, send an email to:

main+summary@[GROUPNAME].groups.io

To receive only special messages, send an email to:

main+special@[GROUPNAME].groups.io

To receive individual messages instead of digests or a summary, send an email to:

main+single@[GROUPNAME].groups.io

Contacting The Group Owner

To contact the owners of this group, send an email to:

main+owner@[GROUPNAME].groups.io

Of course the email has the actual group name!