[MlMt] Proton Email - Duplicate email and Impossible to delete

[Henry Seiden]

Hi Paul,

Not familiar with nor use Proton Mail, so pardon my ignorance. I 
investigated Proton Mail and found it interesting and a standalone 
service though they have integration with other services. There are some 
facets to using multiple layers of email clients and source accounts 
that you apparently are investigating here.

Perhaps you can answer why you are using this combo of client and secure 
server application with MailMate? Certain settings for non-Proton 
clients may be needed.

Benny can answer whether it is compatible with the the integral 
encryption and server accounts in your IMAP and SMTP services. It is not 
listed as supported in Bridge, however that may not be confirmed that it 
isn’t either. You might need to supply some more information about 
what version of MM you are using to determine that.

Are you using Proton Bridge application for specific email apps like 
MailMate? I see that it’s [recommended in certain 
cases](https://proton.me/support/clients-supported-bridge) for other 
email client apps. I suspect that it therefore may be needed to operate 
with those email clients and MailMate may be one such. Proton claims not 
to have tested MM in Bridge, but they might have insights as to why.

In my use case MailMate application installation operates just fine with 
10 source accounts of varying types (iCloud, Google, Outlook/Windows 
Live, Yahoo, and commercial servers). The details are below.

You can submit this to Benny directly at his [feedback 
page](mailto:mm-feedback at freron.com) if you don’t wish to share it 
here publicly.
My system: MailMate/6241/282BCB28-893E-51E7-891E-F3272BC540D1 
15.4.0/arm64/MacBookPro18,3/10

Also as to encryption (which Proton makes a big deal about supporting), 
I have used publicly available encryption S/MIME and PGP which are 
commercially available and supported in MM, but have encountered some 
issues with handling encrypted and signed email stored in the Drafts 
Folder with latest versions.

This issue is being addressed by the Developer. I see they support PGPjs 
and do not know if MailMate actively supports this service or how (if?) 
it operates with MM.

Respectfully,

Henry Seiden
- -
Techworks Pro Co.
E: info<at>techworkspro<dot>com
W: http://techworkspro.com

On 4 Apr 2025, at 4:07, Paul MASSENDARI wrote:

> Hi,
>
> I’m using Mailmate with Proton Mail, and I noticed two problems:
>
> 1. Emails appears twice on the email view
> 2. I’m not able to delete any email
>
> Trying to delete an email results in the error log below:
>
> ```
> 08:01:33 C: H12 NOOP
> 08:01:33 S: H12 OK command completed in 369 microsec.
> 08:01:33 C: H13 NOOP
> 08:01:33 S: H13 OK command completed in 189 microsec.
> 08:01:33 C: H14 UID MOVE 2833 Trash
> 08:01:33 S: H14 NO operation not allowed
> 08:01:33 Error: Server response: “H14 NO operation not allowed”. 
> Command attempted: “H14 UID MOVE 2833 Trash”.
> 08:01:33 Error code: 1020
> 08:01:33 Failed action (1007). Reset observed read/write timeouts: 8/8
>
> 08:01:33 Handling reply
> 08:01:33 Running action
> 08:01:33 Handling request
> 08:01:33 Trying to disconnect nicely (8)...
> 08:01:33 C: S15 LOGOUT
> ```
>
> Does anyone else have this problem and did I set something incorrectly 
> ?
>
> Thanks for your help and all best,
>
> Paul_______________________________________________
> mailmate mailing list
> Unsubscribe: https://lists.freron.com/listinfo/mailmate
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