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Why can not I send email messages

Causes for problems when sending e-mail messages are mainly two:

The first problem is related to inactivated option for authentication to the SMTP server. To activate this option in your e-mail client, search for “My server uses Authentication” in Microsoft Outlook and Outgoing Server (SMTP) – “Use name and password” in Mozilla Thunderbird.

The second problem is when your Internet Service Provider filters port 25. This port is necessary for you to contact our e-mail servers. In this case you should change the port from 25 to 26 in your e-mail client.

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