The Bridge functionality works like a charm for me, thank you for this functionality. An additional remark I also noticed that I am able to copy my existing mails to Protonmail, for the users not aware of this functionality it would perhaps be of great value to add an additional screenshot to the manual: https://protonmail.com/bridge/

After more than 4 months of various emails with protonmail support, and despite three new versions of Protonmail bridge, I'm still unable to make protonmail work with Thunderbird email client via protonmail bridge.
Protonmail bridge is just too slow, too unstable (at least 1 time per day with bridge stuck loading endlessly), makes duplicate emails erase other messages, mess up Thunderbird search function in archived emails and other annoying bugs.

Please give us a REAL solution, usable in a production environnement.

The Protonmail concept is great. Too bad it cannot be used with email clients...

^mid-dec (2018)

I have been a subscriber for nearly a year. Windows 10, thunderbird (donator) and protonmail bridge. Late last year 2018 it started playing up - but then it is an old laptop. Started seeing a lot of failures to connect to the bridge. I started the process of migrating to a new laptop Surface Pro. There was a new version of the bridge and things got way worse. increased failure to connect, download messages. Deleted and re-added my account to thunderbird Reinstalled the bridge mid-Jan and got a temporary respite, finally downloading previous fortnight's messages, until it failed again. its the 27th today and nothing downloaded since 19th. Got it all running on new machine but still getting 127.0.0.1 refusals and the bridge keeps crashing. Meanwhile the drafts folder disappeared and messages have to be saved locally. On both machines, these errors, so its not environmental. No error messages, just not there in the task bar. And drafts held on two machines without sync.

Re-enabling it on the new machine gets it going again, but its a nuisance and really has dented confidence in this as a reliable solution for anyone looking for simple privacy. But what's the alternative? Give up and go back to Outlook? Ditch the brdge? Hard to tell which is better. Its a major faf to have to migrate my domain away from Protonmail and back to the god-awful godaddy but perhaps I must. Don't much fancy gmail as a secure mail host and really had high hopes for PM.

So just reinstalled the bridge on the old workhorse. Will not stay resident. Going to have to restart again, meaning shutting everything down AGAIN. and the cycle of time-eating begins again. Meanwhile the bridge on the new laptop also flakes out. No mention of protonmail in Thunderbird's online help or forum (hosted by mozilla even though tbird not owned by mozilla any more. ok not entirely true. One post in Polish or Hungarian maybe. So Tbirb not serious about maintaining support?

I start PM on the new machine without starting TB to see if it stays resident. Leave it to cook, see what happens. If it stays all day, then the problem points to TB. On the old machine thinking will try Outlook. But all of the above is a HUGE time-waster. I have paid for both these products. I get that PM can say "just use the web version" and that of course is a great USP for those in war-zones, with terrorist governments, journalists and bloggers living under surveillance, or running drug cartels; and TB have probably bigger fish to fry in terms of their user base; but for the rest of us who just want to exercise their right to privacy in an everyday way, I wonder if the time spent maintaining it is worth the bother. Will maybe report back - if i get any time!

I get "Lost connection to 127.0.0.1" using Thunderbird and Windows 10. However, I do NOT get this using macOS. Something isn't right with Windows 10 version.

Same "Lost connection to 127.0.0.1" problem here. Been using the new Linux Bridge with Thunderbird but connection constantly times out. Can (sometimes) transfer around 20 mails before connection breaks. Thought I might try the Windows Bridge with Thunderbird (on a virtual machine) to do a one off import, but get EXACTLY the same problem. The Bridge does not seem to be robust enough for serious IMAP transfer. And that makes moving to ProtonMail, which otherwise is very good indeed, and has much better spam handling than KolabNow, for instance, VERY unattractive. Decent, reliably IMPORT/EXPORT essential. If there's one fix they should urgently make, this is it.

started: https://protonmail.uservoice.com/forums/284483-feedback/suggestions/34778701-dedicated-gmail-import-tool-feature-without-usi

I'm having the "Lost connection to 127.0.0.1" problem as well. I'm using Thunderbird and an IMAP. If I "compact" my IMAP inbox, I am able to upload about 150 messages before it times out. Before, it was about 20. I need to transfer about 11k messages from my inbox and about 6k messages from the sent folder. Doing it 20 (or event 150) messages at a time seems like a bad solution. Please help.

Any advice anyone? ProtonMail Bridge isn't working when trying to move emails in a local folder (.mbox) to an IMAP folder, using Thunderbird.

Thunderbird repeatedly times out after moving about 20 emails, saying it has lost connection to the server. I've got hundreds of emails to move.

And ProtonMail Bridge pops up an error messaging saying "the address list has been changed for the account. You may need to reconfigure the settings in your email client".

Can't find any solution for this... :(

I would also like to use Thunderbird with Enigmail (PGP) and IMAPS (IMAP SSL/TLS or STARTTLS) and (SMTP SSL/TLS or StartTLS) as my primary email tool using ProtonMail as my server, just like I currently do with GMail or my own inhouse server. i.e. Send/Receive encrypted email and manage folders through IMAPS.
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Actually I would like to use external aliases with own encryption keys already in web interface. Sometimes Thunderbird is not available - e.g. in smartphone or foreign computer.
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To be honest - currently the Bridge is available only for macOS and MS Windows but I am using Linux. So for me it is far from complete state - definitely incomplete! Would expect DEB, RPM repositories and also standalone binary for those who have other Linux distro. Even only the binary version initially would be much better than nothing for Linux. 32-bit and 64-bit version would be appreciated. Later then you have time to package the Bridge and set up repositories.
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As far as there is no custom external aliases with own encryption keys not possible to use then I cannot use ProtonMail in Linux because without web interface it would not be possible as Bridge does not work in Linux (yet).
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I could survive to use one-time MS Windows under virtual machine to transfer other mailboxes to ProtonMail. But I am not ready to keep using ProtonMail under MS Windows. Also as in ProtonMail web interface is still no support for external custom aliases with own encryption keys (at least 4096-bit RSA) then cannot start using ProtonMail in full power.
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If there could be a Linux version of Bridge then I could move my other mail into ProtonMail and start using Enigmail inside Thunderbird as there I can use custom external aliases and start using ProtonMail with full power. Certainly then I would expect also web interface the external custom aliases with own encryption keys with 4096-bit RSA (at least) support.
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The issue is that how can I use custom external aliases with own encryption keys in smartphone? I mean Android, iOS? So - either the smartphone app should support it or if smartphone app is using web interface then this one. So basically the web interface should support anyway those external custom aliases with own encryption keys. Even if I could use these in smartphone and in computer with Thunderbird in Linux in first place then there could be some time to finalize same functionality in web interface.
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I am using paid Visionary package

If you are a paid ProtonMail member you can already achieve this with ProtonMail Bridge: https://protonmail.com/bridge/

I would like to use Thunderbird with Enigmail (PGP) and IMAPS (IMAP SSL/TLS or STARTTLS) and (SMTP SSL/TLS or StartTLS) as my primary email tool using ProtonMail as my server, just like I currently do with GMail or my own inhouse server. i.e. Send/Receive encrypted email and manage folders through IMAPS.

This will allow me to continue to use my local PGP Key Manager with Address book/contact lists and PGP/MIME for HTML messages and attachments.

I am brand new to ProtonMail, but an older hand and therefore comfortable with PGP email communication. ProtonMail looks like an easy way to get my less technical friends using secure mail with their iOS and Android devices. Thunderbird-Enigmail/IMAPS (or Outlook IMAPS with PGP) will easily extend ProtonMail securely to desktop machines with "all the features" for "Free".

I have same kind idea, but that the imap works the way that you can have only one imap/import folder what you can subscribe from protonmail, that folder works just for copying old e-mails and folders from your imap client and in protonmail, you can then move these e-mails and folders where you want them. so that one migrate/import folder dosnt need to support crypting and all of these features what protonmail offers otherwise, you can make it even more secure to unallow write permission to it from protonmail interface, it can only take mails from imap.

that folder is only accessible when user enable the imap exporting from protonmail setup/configurator.

POP is a must have. I don't want my emails living on the server.

Good idea, with a few notes:
- Should be able to give every device or app (e.g. phone, Outlook) its own password and login. In case the device got lost, you can close the connection with that device or app using the web portal.
- should be able to see the last time the device or app has have had contact.

good idea. I had my Google acct attack with a new hacking technique. It happened to me!...yet Google do not believe it could happen because they claim to be the best. After many different account in many different websites were what appeared hacked because I would type in my password (in MSN 3 email accts, Google acct, and Chase Bank acct 'sign in' page) on a company website and the password would NOT take repeatedly. Hackers were able to control my cell phone (and my email by malwaring the website sign in page) so that when I requested a code be sent to unlock my acct so I can get in, the code NEVER came thru. So I had to 'port' my phone # to a new cheap phone. Then I went back to the website to request my code and then I got the code. Once I got the code to unlock my acct on all the websites, I found out hackers did NOT change my password. They just malware the 'sign-in' page so that the password would not work. ALSO on my MSN email account they were able to malware my email account so I cannot get all my current mail or delete some emails, or they would recur again repopulating my email what I thought I deleted. AN UNDERGROUND HACKING GROUP HAS FOUND A WAY TO HACK INTO ANY WEBSITE AND BLOCK ENTRY OF PASSWORDS SO THAT THE CLIENT 'THINKS' THEIR PASSWORDS WERE CHANGED! And they additionally hacked that person's cell phone (easlly done with a FEM CELL or by calling that number as see on 60 Minutes/TV). Google and the rest of the world keeps telling people it can't be done, yet it did and is continuing. Once separate customers from their email log in account and separating them from receiving their requested 'codes' online to be sent to their cell phone, they are LOCKED out permanently! No contact with the world virtually in essence. Whether hackers needed to FIRST get the password (thru hacking mobile devices to get (like an excel with all the person's passwords for their accts) to GET INTO ACCT in ORDER to PUT THE MALWARE ON THE SIGN-IN PAGE or not is the question for website SECURITY. But the SECURITY world UNFORTUNATELY IS UNAWARE THIS NEW TYPE OF HACKING IS OCCURRING UNDERGROUND. Now it appears it is an underground group TARGETING certain people.
BUT if it is now address, it will and can migrate to the point where they will and can get into hacking an entire community thru the internet. IF Google is cocky enough to believe this could not happen it did happen to me on many of my website accounts. It was my follow up and trying to get back into my and my husband's account at Chase Bank that all the pieces fell into place. I walked into the local Chase Bank and phone their security when I could not get in when I logged in at the Library computer (after being hacked on my computer). They could not initially get in either, until their higher security person unlocked it and send us a code. Once we got the code, we got in and use the SAME password. SO THE SECRET IS THEY CAN HACK ANY WEBSITE SIGN-IN PAGE AND HACK THAT SITE SO CUSTOMER CANNOT SIGN IN (but think their passwords were changed. Then all the account of THAT same individual was hacked as the hackers got that person info from the excel and/or hack spying on them for a long time.

I am glad to say I GIVE PROTON MAIL HUGE CREDIT FOR THEIR SECURITY. AS THEY HAVE NOT AS YET BEEN ABLE TO HACK INTO MY PROTONMAIL! PROTONMAIL, YOU ARE THE BEST IN SECURITY AS YOU MUST HAVE SOMETHING THAT THUS FAR MADE IT SO HACKERS CANNOT HACK YOUR 'SIGN-IN' PAGE. I say this because these hackers have not been caught NOR have the Security Industry been able to even acknowledge this is going on and will continue to go on. If these hackers cannot be caught nor Security of websites fix this security breach, they will proliferate into the rest of the hacking world....maybe at the Hackers Conventions.

This is really important to me as I'm moving after the Yahoo email hack, although all of my new email comes into my ProtonMail plus account I really need all of my history before I can stop using my old account.

This is a must-have feature to enable fast adoption of protonmail. I would definitely pay for this if it were part of Protonmail. Right not it is hard to make proton my email hub without this feature.

Importing Gmail into Protonmail

I am waiting this functionnality to migrate to protonmail.
With gmail I download and use all my others mails .
I would like the same things to migrate and stop using gmail.