Unable to fetch email from POP3 servers

Hi-

I am new to BolehVPN coming from a competitor. I am unable to fetch email from POP3 servers from Thunderbird 45.8.0. Note that I can send email and I can fetch without connection to a VPN and when connected to my former VPN. All other functionality I have tried works fine.

I am in the US and have tried a few IPv4-SurfingStreaming-US connections. Here is what a connection attempt looks like from the Thunderbird logs:

09:52:25.991000 UTC - 4932[911140]: POP3: [this=18ddd410] LoadUrl()
09:52:25.991000 UTC - 4932[911140]: POP3: [this=18ddd410] Initialize()
09:52:25.992000 UTC - 4932[911140]: POP3: [this=18ddd410] Connecting to server mail.xyz.com:110
09:52:25.992000 UTC - 4932[911140]: POP3: [this=18ddd410] Setting server busy in nsPop3Protocol::LoadUrl()
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] Entering NET_ProcessPop3 0
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] Entering state: 24
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] Entering state: 25
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] Clearing server busy in POP3_FREE
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] Clearing running protocol in POP3_FREE
09:52:46.987000 UTC - 4932[911140]: POP3: [this=18ddd410] ~nsPop3Protocol()
09:52:46.988000 UTC - 4932[911140]: POP3 sink: [this=11a661a0] Calling ReleaseFolderLock from ~nsPop3Sink
09:52:46.988000 UTC - 4932[911140]: POP3 sink: [this=11a661a0] ReleaseFolderLock haveSemaphore = FALSE

I also connect to GMail which shows similar logs other than the port is 995 rather than 110.

What setting in either BolehVPN or Thunderbird should I use in order to fetch email?

Thanks!