Error talking to IMAP server

I’m a bit stumped by this issue and have been trying to resolve for the past few months.

I’ve moved from my Raspberry Pi 3 to a Pi 4. I have installed RISC OS 5.30 and have the Pi connected to my WiFi network with no issues, I am using the ROD IP stack. I can connect to websites, run VNC to connect to other machines and I use LanMan to connect to a NAS without any issues.

On the Pi 3 I had Messenger running as an email client. It was configured to use IMAP to retrieve my emails from BTs email servers. On the Pi 4 I have not been able to get this working. I have tried other mail accounts from different providers with the same result.

I have Messenger configured to Activate SSL/TLS on connection and when I try and connect after about a minute I get the error:

“Error talking to IMAP server (Handshake error (state 80))”

I have tried changing the config in Messenger but this just hangs the Pi. Tried using an older version of RemoteNB and get the same error. I’ve also tried different versions of AcornSSL (currently 1.07) but always the same message.

I don’t believe this is an issue with Messenger but I have run out of ideas of what it could be.

Any suggestions welcome !

Does it work with the ROOL stack?

State 80 is I believe NET_CONN_RESET Connection was reset by peer.
But I have no idea what that could be caused by.

Are you sure the password is correct?

“Error talking to IMAP server (Handshake error (state 80))”

I had the same issue with RemoteNB 3.15Beta2 that uses the ROOL AcornSSL module a few years ago.

Though it was with Outlook and I never really got to the bottom of it, even communicationing on the Messenger list, so just carried on using POP3 until the latest implementation of AuthO stopped that working.

If I remember rightly BT email uses port 993, for incoming, and that also needs to be specified.

Running the RemoteNB !RunImage through PatchSWP also throws up a:

Not yet patchable by me: SWP 5,5,[6} at offset &207FC error so I wonder if the code is entirely pi4 compatible?

Does it work with the ROOL stack?

No, still the same issue – sorry should have mentioned I had tried that in the original post

Are you sure the password is correct?

Have typed the password many times to check :)

I had the same issue with RemoteNB 3.15Beta2

Interesting, I have tried an older version of RemoteNB (3.13) and still the same. The port 993 is specified in the config

I notice you said it works on the Pi3, so what version of RISC OS does that have as this could be an issue with certain changes 5.30 brought about that has required some software to require updating.

The Pi3 is currently running 5.30. It was upgraded from from 5.28 to 5.29.

The Pi3 is currently running 5.30

OK so thats the same as the Pi4 then.

Is the sdcard one moved from the Pi3 to the Pi4?

Or what about the CPU configuration settings in Configure, are alignment exceptions set to on or off, try changing them.

Do they match the Pi3 if it is a different sdcard install.

Just to narrow it down to IMAP/RemoteNB then try configuring POP3 for downloads , does that work.

Is the sdcard one moved from the Pi3 to the Pi4?

It is a new SD Card in the Pi4

Or what about the CPU configuration settings in Configure, are alignment exceptions set to on or off, try changing them.

Alignment exceptions are set to on, which is the same as the Pi3. Have tried setting them to off and same issue

Just to narrow it down to IMAP/RemoteNB then try configuring POP3 for downloads , does that work.

POP3 works, all messages in the inbox downloaded with no issues. Looks like an issue with IMAP/RemoteNB, but have no idea what would be causing it

versions of AcornSSL (currently 1.07)

I thought v1.06 (27 May 2023) mbedTLS 2.28.9 was the latest? Or have I missed something?!

I thought v1.06 (27 May 2023) mbedTLS 2.28.9 was the latest?

Sorry typo, I’m using v1.06 of AcornSSL