If you are experiencing issues while connecting your account to Spark, checking if the connection and login requirements are met would be a solution. This reading will lead you through general requirements related to a stable internet connection and VPN usage, as well as each email provider's specifics.
General requirements
While adding an account to Spark, there are several factors that may prevent you from succeeding, regardless of your email provider. Please check the following:
1. VPN is not being used.
If you use a VPN, we can’t guarantee Spark will work properly. The quality of the performance via a VPN depends solely on the VPN network's servers. For this reason, we recommend you turn the VPN off.
If you're located in Mainland China, make sure to use a VPN that allows access to Google services.
2. There is no firewall preventing access to Spark.
Some organizations configure firewalls to prevent access to certain websites from their networks. Ask the administrator if access to Spark (as the third-party email application) is allowed. Alternatively, you can try to connect to a different network.
3. Your internet connection is stable.
Spark requires a stable internet connection to connect to an email account. If the internet connection is poor, try another network.
Email provider-specific requirements
If you're still experiencing issues with connecting your account, please find your email provider on the list and follow the link to find detailed instructions on how to fix login issues in Spark: