We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How do I adjust the number of connections to the server. I get rejected after three connections.

  • 2 odgovori
  • 17 ima ovaj problem
  • 1 view
  • Posljednji odgovor poslao Adcan

more options

The following message appears after I have accessed three folders in my email.- "Unable to connect to IMAP server. You may have exceeded the maximum number of connections to this server. If so, use the Advanced IMAP Server Settings dialog to reduce the number of cached connections."

The following message appears after I have accessed three folders in my email.- "Unable to connect to IMAP server. You may have exceeded the maximum number of connections to this server. If so, use the Advanced IMAP Server Settings dialog to reduce the number of cached connections."

Izabrano rješenje

You can connect to a IMAP server as often as you want, BUT... you may be restricted in the number of simultaneous channels that are open during that connection.

Thunderbird sets a default limit of 5. You can go higher on some servers, or you can go as low as 1. Try setting the connection limit to 3


'Tools - Account Settings - [select your account] - Server Settings - [Server Settings section] - Advanced - Maximum number of server connections to cache - [Enter 3] If it is already set to 3, go lower - 2 or even 1. OK out

TB-38.2 Win-PC

Pročitajte ovaj odgovor sa objašnjenjem 👍 3

All Replies (2)

more options

Odabrano rješenje

You can connect to a IMAP server as often as you want, BUT... you may be restricted in the number of simultaneous channels that are open during that connection.

Thunderbird sets a default limit of 5. You can go higher on some servers, or you can go as low as 1. Try setting the connection limit to 3


'Tools - Account Settings - [select your account] - Server Settings - [Server Settings section] - Advanced - Maximum number of server connections to cache - [Enter 3] If it is already set to 3, go lower - 2 or even 1. OK out

TB-38.2 Win-PC

more options

Thank You. The solution worked and now I can access each of the folders. I am very grateful for your assistance.