Complete Guide to Import PST File to ProtonMail without Outlook Directly

Jyoti Sharma | cloud how to | 5 minutes read | Modified on: 03-11-2022

Have you PST file in Mac or Windows OS and need to import PST file to ProtoMail webmail account or want to know how do I import Outlook into Proton Mail account directly? Then this write up is exact platform for you to overcome from all problems of exporting emails into PtotoMail from Outlook PST file. Therefore, read this article and learn how to import PST to ProtonMail Webmail server easily.

.pst is well-known data file extension of Windows Outlook and it means personal storage table. It is generated when users export their important folders from the personal account. Proton Mail has all users’ crucial data – contacts, mail, calendars, notes, tasks. It is in two form – UNICODE & ANSI. On the other side, ProtonMail is also widely used encrypted business mail service provider that supports MBOX extension to save mails data. Moreover, both ProtonMail & MS Outlook have some same functionalities. Both are for maintaining day to day unlimited mail of business organizations & individuals.

Why Users Import PST File to Proton Mail Account

Frequently, users have ProtonMail account and also using it for their business work. They receive PST file from client or business friend. Then they have challenge that to import them in ProtonMail and at this time, they face difficulties because of inaccessibility issue of PST file without Outlook. Because PST file is not compatible with other mail app; it can only open in Outlook easily. Any other mail application or server cannot open data containing PST format.

However, ProtonMail is a mail service that can save data in MBOX format. Therefore, if any users need to use PST file in Proton Mail then need to transfer PST to MBOX on Mac or Windows but the issue is how to import PST to ProtonMail directly. When we focus on Mac then it is very difficult because it is very high secured OS and doesn’t allow easily install any application for migration. So, it is crucial for all to accept solution that is assured & provides 100% safe and exact result. Here, we are explaining two methods to add PST file to Proton Mail. Lets focus on them –

Manual method to Import PST file to Proton Mail with Outlook

The manual method can help to access PST file to ProtonMail account with Outlook. Lets start –

  • First of all, Open Outlook and Click on Add Account option.
  • Provide your ProtonMail login ID and click on Connect.
  • Now choose the IMAP option.
  • Then fill the IMAP setting of your IMAP Server. Click on Next button.
  • Fill your login credential and click on connect button.
  • Now your ProtonMail is in your Outlook and go with File Menu >> Open & Export >> Open Outlook Data File. Then Choose Next button.
  • Browse and choose the PST file which you need to access in ProtoMail account.

Any Drawbacks Availability?

Yes, Manual method has some drawbacks and you can face them when you executing this process.

  • You can face Outlook configuration error “0X800CCC0E”
  • It is not a safe & secure.
  • Outlook installation is required.
  • It is time consuming process so may take lots of time for executing.
  • It may lose your data details.

Proficient Solution to Import PST to Proton Mail Directly

To overcome from the situation, BitVare Software has launched advanced PST Converter for Mac & Windows both OS that can simply add PST files data to ProtonMail account. It has MBOX & IMAP both saving option for PST file so you can choose any option and easily save PST file to MBOX or IMAP for Proton Mail account. The tool is equipped with user friendly GUI and simple steps that technical & non-technical users can perfectly handle and know how to import emails from Outlook to Proton Mail. It is also time-saving method as well since it has few working steps which helps to save all PST file data to ProtonMail and also delivers complete & assured data migration outcome.

However, the tool offers lots of advanced & developed functions that users can use according to their need for getting desired outcome. In case, you would like to know how to import emails into Proton Mail from Outlook PST, then download the software and follow the given simple steps –

  • After downloading & installing the software, launch it on your desktop screen.
  • Select your PST file by provided options – Add File & Add Folders. (In Windows OS, the tool can also load configured Outlook account data automatically.)
  • It lists data in tree structure with checkbox, mark & unmark on the file that you need to save in Proton Mail. (In Windows OS, after that, you can also analyze complete PST file data in multiple modes.) Click on Next button.
  • Choose MBOX or IMAP for ProtonMail. (IMAP can directly save PST file data in ProtonMail.).
  • Fill your Proton Mail login details and click on Export button.
  • Migration starts with progress status bar.

In few minutes, The PST to Proton Mail tool will finish the process and display Conversion Successfully Completed message on your screen. Click on OK option and go with your Proton Mail account to check the migration result. Mails & attachments migration accuracy will be exact and complete with rich text & HTML formatting. Using it you can import unlimited data of PST file to Proton Mail account without alteration of a bit of data. In Windows OS, you can save attachments, mail address & phone numbers of emails on your local system. It will also help to view PST file data without Outlook because it has no need for Outlook installation.


This write up has explained manual and direct migration solution to import PST file to Proton Mail account. The PST to IMAP option can save your PST files to Proton Mail account directly. If you choose MBOX option then after migration you will have to import output MBOX file in Proton Mail. The software is available for Mac & Windows both users so effortlessly solve your problem how do I transfer PST file to Proton Mail account directly. This utility is not only simple, advanced solution but also a safe migration solution. It provides safe data migration result.

If you have any doubt or confusion then also go with its free demo edition that will help to find out its working & efficiency. It helps to convert 10 – 25 emails from PST to Proton Mail Webmail Service account without any charges.