At this moment adding custom domains is not available through our iOS and Android Application. We are working on adding this in the future.
How to add a custom domain through iOS/Android app
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As a native Android app developer of 5 years, I am curious about the limitations that prevent accounts with “custom” domains – domains other than protonmail.com – from being accessed on mobile devices via your app. I am familiar with PGP, DES, Android privileges etc. and some legal issues regarding encryption and intellectual property yet I cannot imagine any root cause behind why I cannot use my new account on my mobile device.
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You would log in to sub-user accounts the same way as when using the web client, using the entire custom domain address. If you are having a different issue, please contact our support team at contact@protonmail.com or using the support form at https://protonmail.com/support-form.
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Hello how can I add one more custom domain? I have alredady 10/10 can I add one more?
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To add more than 10 custom domains, you will need to upgrade to our Professional plan. Using the Professional plan you can add up to 50 custom domains. https://protonmail.com/support/knowledge-base/business/
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How do I connect my domain to my ProtonMail account????
Can I connect my private emails???
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Please contact our support team using the support form at https://protonmail.com/support-form.
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