Block specific domains - By adding domains to a Block list, you can communicate with all external domains except the ones you've blocked. To block specific domains, click Add a domain, Let your Skype for Business Online users communicate with Skype for Business Online users from another Microsoft 365 or Office 365.

Control access to your presence information in Skype for Block a contact. To block everyone from reaching you, try setting your Status to Do not disturb or Appear Away. To forcibly prevent contacts from reaching you via IM or phone in Skype for Business, do this for each one: In your Contacts list, right-click the contact you want to block. How To Remove And Block Contacts In Skype | Technobezz Jun 13, 2018 Microsoft Skype for Business - How to Block a Number - PEI

If you add Chat from Web Content Filtering and you need exclude the Skype from blocking you should add the below domains to Never block list skype.com skype.net skypeassets.com live.com

How to Unblock Skype – OpenDNS If you add Chat from Web Content Filtering and you need exclude the Skype from blocking you should add the below domains to Never block list skype.com skype.net skypeassets.com live.com

How to Unblock People on Skype - Appuals.com

Copy that Skype file to your desktop as a backup. Once done copying, delete the Skype file in OS ( C: )/ users/ Your User Name/appdata/Roaming/. Sign back into Skype you and have done a complete clean. Look for the suspects with missing photos, if those photos were missing already but you can see their contact list they are safe. Change participant settings for Skype for Business The Skype for Business default options are appropriate for small and casual meetings with coworkers. It’s a good idea to change the options if you are inviting more than 10 to15 people, want to control meeting permissions, or have invitees from other companies. How to Uninstall Skype or Disable It on Windows 10