It appears that Slack's do-not-disturb feature is on a team-by-team basis. I would prefer to disable this for certain channels though. Is there a way to do this?
Slack – How to Set Per-Channel Do-Not-Disturb
notificationsslack
Related Solutions
You can mute a channel. Then you will no longer receive any notifications for that channel incl. the asterix for new messages.
To mute a channel open it, click on the cog and then choose "Mute XXX".
From what I can see, you cannot post messages on Slack from the mobile web site. Even if you request the desktop version of the site there does not appear a way to post messages.
You'll need to install the Slack app.
Best Answer
You can configure your notification settings per channel in Slack. Just go to the respective channel, click on the cog symbol and then on "Notification Preferences". There you can also mute the channel completely.
However, its not possible the overwrite the "dnd" state for specific channels that way.