If you want to change your default account so you don’t have to perform this step every time, go to Menu > Accounts, select the preferred account from the list on the left side and then click the ‘Set as default’ button. The account marked by a star is the one set as default.

Read more in the Documentation: Accounts

Go to Menu > Accounts.
In the left-hand side of the dialogue box, you'll see the list of accounts you've linked to eM Client. Select the one you want to remove and click the Remove button in the toolbar at the top.

Read more in the Documentation: Accounts

To change the order of these accounts, simply click on one of them. Then use the Up or Down buttons in the top toolbar to move the account in the desired direction. This changes the order of your accounts in the main Mail tab.
The location of the Local Folders and Archive cannot be changed.

IMPORTANT: Please note that changing the account order is not the same thing as setting an account as default. The default account is always the one marked by a star, not necessarily the first one on the list.

Note: In order to send out on behalf of such account, eM Client may require an initial setup of the account with your mail server, for example connecting the two accounts in your online Account settings. In case of Google accounts you first need to go to gmail.com and link the two accounts in Settings there.

While Gmail's default (and preferred) email protocol is IMAP, we definitely support a POP protocol option as well. However, since it's not the available setting from Autodiscover, you will need to set up the account manually.

Gmail has a special secure login called oAuth, which natively supports only IMAP. However, a secure POP setup can still be created thanks to App-specific passwords.

You will just need to Allow access for Less secure apps (as POP connection is seen as less secure than IMAP with oAuth login), enable POP protocol in your Gmail settings and then enable 2-factor authentication to create an App password (a special password which will be used only for eM Client - so your actual Google password is safe).

Manual setup in eM Client is then available in the New Account window under Mail > Other.
There you can select the POP protocol, input your server settings and create your desired POP setup. Make sure to use the created App password instead of your main Google password.

•          First, go to Menu > Accounts, and click on the + Add account button.
•          Skip the Automatic setup and click the Calendar section instead.
•          Select the option that applies to your existing Calendar account and click Next to finish the setup.

Note: If you don't have an online calendar account but would want to have one to synchronize your calendar online to your other devices, you can register an account for free on platforms that provide an option to synchronize just your Calendars and Contacts (such as Fruux, for example).

Read more in the Documentation: About Calendar

•          First, go to Menu > Accounts, and click on the + Add account button.
•          Skip the Automatic setup and click the Contacts section instead.
•          Select the option that applies to your existing Contacts account and click Next to finish the setup.

Note: If you don't have an online contacts account but would want to have one to synchronize your contacts online to your other devices, you can register an account for free on platforms that provide an option to synchronize just your Calendars and Contacts (such as Fruux, for example).

'All Mail' folder disabled

For Gmail and Google Apps accounts, eM Client synchronizes the 'All Mail' folder. It appears that IMAP access for this folder on account '<your email address>' is currently disabled and synchronization will fail.

To fix this, you need to make sure the 'All Mail' folder has 'Show in IMAP' checked in their Gmail settings at https://mail.google.com/mail/u/0/#settings/labels.

Simply follow the directions from the error message and enable All Mail label to be shown in IMAP.

NOTE: The 'All Mail' folder is a vital part of your Gmail account - it stores all the messages in your account (with the exception of Trash and Spam folders - these are separate).
Synchronizing this folder will not create any duplicates of your messages, because eM Client supports this specific Gmail structure and each message is stored only once in the All Mail folder and all the other folders (Inbox, Sent, Drafts, ...) are just Labels - special search folders which will show the messages from All Mail folder with the matching Label. Kind of like Tags in eM Client.

This actually allows for the synchronization to be faster and the data to take up less space on your device than if the Labels were converted into real folders.

This cannot be done directly via eM Client yet, but there are ways to get your avatar updated and connect an image with your email account everywhere.

The easiest way to change your email avatar is via Gravatar - https://gravatar.com/
Just create an account with your email address and upload an image.
eM Client will be able to load this image for your email account.

If you own your domain/have a website on the domain you can set up a favicon.
You can read about favicon setup here - https://www.w3.org/2005/10/howto-favicon

Another tool that you might find useful is a favicon generator, to create different sizes of your image - https://www.websiteplanet.com/webtools/favicon-generator

IMPORTANT: Please note that since eM Client updates the downloaded avatars every 30 days, the avatar changes won’t be immediately visible.

However, you can force eM Client to re-download new images by disabling and re-enabling the download of images from external sources, which will clear the image cache:

1.        Go to Menu > Settings > Contacts > General
2.        Disable the option ‘Download avatars from external sources’ and click ‘Apply’
3.        Then enable the option ‘Download avatars from external sources’ again and click ‘Ok’
4.        Your new image will show up now

• In the Delegation window or section click the Show... button next to "Accounts you can access:"
• The "Delegated accounts" open will open.
• Click the Add button on the Delegated accounts window.
• The "Select users or groups" window will open.
• To add the delegated account you should have access to, enter it under "Enter the name of users or group:". E.g., user@domain.com. Then click the Search button.
• That user will be displayed under "Group or user names". Click on the proper account name and click the Ok button.
• Click the Ok button on the Delegated accounts window as well and close/save the original Delegation window.

If the shared folders do not appear right away, try closing and re-opening the eM Client app.

• In the Public folders window or section click the Edit... button next to "Choose which public folders to show:"
• A list of domain shared calendars and/or folders should be displayed.
• Select the ones you want to add, then click the Ok button. 
• Then, click Save & Close on the Accounts window or close the Public folders window.

1. Go to Menu > Accounts (Windows) or eM Client > Accounts (macOS)
2. Click '+Add account'.
3. In the New Account window, select Mail > Other.
4. Insert your Gmail account address.
5. For the incoming POP3 server, enter: pop.gmail.com
6. For the outgoing server, enter: smtp.gmail.com
7. Continue the setup. You will be redirected to your browser to grant access via OAuth.

1. Go to Menu > Accounts (Windows) or eM Client > Accounts (macOS)
2. Click '+Add account'.
3. In the New Account window, select Mail > Other.
4. Insert your MS365 account address.
5. For the incoming IMAP or POP3 server, enter: outlook.office365.com
6. For the outgoing server, enter: smtp-mail.outlook.com
7. Continue the setup. You will be redirected to your browser to grant access via OAuth.