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2. The Exchange server limits the maximum number of associated devices and historical
synchronization devices. If the device quantity exceeds these two limits, the login fails.
If you encounter this problem, contact your company's email server administrator to
check whether the device quantity exceeds the limits. If yes, request the administrator to
delete certain history bound devices.
9.5 What can I do if I can't connect to the server when
refreshing my emails?
1. Check the network connection status and set APN to CMNET.
2. Wait for a while and then refresh the emails because the email server may be busy.
9.6 What can I do if I can't connect to the QQ mailbox
because I haven't activated the IMAP and POP3 services?
Open the browser on your computer or phone and log in to your QQ mailbox. Go to Settings >
Account and enable IMAP/SMTP and POP3/SMTP services, and use Email on your phone to
log in to your email.
9.7 Are there any restrictions on the sending and receiving
of emails?
Your email service provider has restrictions on the frequency of incoming emails.
To prevent junk emails, many email service providers have set restrictions on the frequency of
incoming emails.
When you send emails to multiple recipients, those emails are sent one by one. If you keep
sending emails to a recipient too frequently, or sending a large number of emails to a user, the
email service provider of that recipient or user may temporarily reject the emails you send.
You may stop sending emails for a while.
Your email service provider has restrictions on the frequency of sending emails.
The following is from the official website. For more details, please visit the official website of
your email service provider.
Your email service provider has restrictions on sending emails in the following aspects:
A. Maximum number of emails sent per day.
B. Maximum number of recipients of one email.
C. Maximum number of emails sent from one IP address per day.
D. Maximum number of emails sent in one minute from one IP address.
E. Interval of two emails.
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