If a firewall or your Internet Service Provider (ISP) blocks the 587 port, an alternate SMTP port 465 with SSL encryption type can be used.Alternate SMTP ports 587 or 465 are recommended. They are doing this to cut down the amount of spam that is sent from their network. Many Internet Service Providers (ISPs) are blocking the default SMTP port 25, which is the port used to send email messages.The outgoing SMTP server is (or ), and it is using the port 587 it requires STARTTLS. Under POP and IMAP, select Yes under Let devices and apps use POP. Important Notes for alternate SMTP ports: Select Settings > View all Outlook settings > Mail > Sync email. So, we hope after reading this blog one can easily setup his TWC Webmail account using the given IMAP, POP3 and SMTP Settings, simply copy above TWC Email Server Settings and then, easily access your emails from your desired email application without any issues. Set up your OX Sync or Collaborate mailbox using ActiveSync on Android Mobile Device (Phones, Tablets).Configure Android Devices (Phones, Tablets).Set up your OX Sync or Collaborate mailbox using ActiveSync on iOS Mobile Device (iPhone, iPad).

The linked articles below contain instructions on how to set up your Open-Xchange mailbox as POP or IMAP account on various email clients for Windows and Mac. Note: You can also access your email via the Open-Xchange Webmail interface at. In this help article you will find general instructions and settings on how to configure your Open-Xchange (POP/IMAP) mailbox in the most popular email clients and mobile devices.

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