Most people end up with more than one email account without planning for it. A work address and a personal one. An old client-facing address that still gets traffic. A second domain you set up for a project. Each on its own is fine. Managing them separately means logging in and out, missing things in one inbox while dealing with another, and spending more time on email admin than you should.
Depending on what you need, there are four main ways to look at emails through a different account: email forwarding, adding the account directly into Gmail or Outlook, using a desktop client that pulls multiple inboxes into one view, or Google's multi-account sign-in for quickly switching between two Google accounts. There's also email delegation, which applies when you need access to someone else's inbox rather than your own second account.
Why switching between accounts costs more than it looks
Logging in and out of two inboxes doesn't feel like much, but the cost isn't just the seconds it takes. Gloria Mark's research at UC Irvine, published in The Cost of Interrupted Work, found that it takes an average of 23 minutes to fully recover focus after switching away from a task. Checking a second inbox and switching back is exactly that kind of interruption, done several times a day.
The cost adds up. According to the 2026 Fyxer Admin Burden Index, the average office worker loses over an hour a day to avoidable email admin; and fragmented inboxes are a direct contributor.
There's also a more straightforward problem: you forget to check one. You clear your main inbox, feel on top of things, and later find out three emails in your other account needed attention two days ago. Consolidating inboxes doesn't just reduce the time cost. It removes the gap where things slip through.
Option 1: Forward emails from one account to another
Forwarding routes incoming emails from one address directly to another, so you see everything in a single inbox without logging into both. It's the lowest-effort setup and takes about five minutes.
In Gmail: Open Settings and go to the Forwarding and POP/IMAP tab. Click 'Add a forwarding address,' enter the destination email address, and confirm the verification link that gets sent there. Back on the same settings page, select 'Forward a copy of incoming mail' and choose whether Gmail should keep or archive the original copy.
In Outlook (web): Go to Settings, then View all Outlook settings, then Mail, then Forwarding. Check 'Enable forwarding,' enter the destination address, and save. You can choose whether to keep copies in the Outlook inbox at the same time.
Two things to be aware of. First, forwarding only applies to new mail arriving after setup. Anything already in the original inbox stays there. Second, when you reply from the receiving account, your reply comes from that address, not the original one. If clients or colleagues expect a reply from a specific address, that can cause confusion.
Option 2: Add a second account inside Gmail or Outlook
Adding an account directly into your existing email client lets you read and send from both addresses in one place, without losing the ability to reply as the correct sender. It takes a little more setup than forwarding but avoids the reply-from-wrong-address problem.
In Gmail: Go to Settings, then the Accounts and Import tab. Under 'Check mail from other accounts,' click 'Add a mail account' and enter the address. Gmail connects via POP3, so you'll need to enable POP access in the settings of the account you're adding first. Once connected, emails from that account appear in your Gmail inbox with a label showing which address they were sent to.
In Outlook, adding a second account is covered in detail in the how to add an email account in Outlook guide. The short version: go to File, then Add Account, and Outlook will try to configure it automatically. If it can't, you enter server details manually. Once added, the account appears as a separate inbox in the left sidebar.
A note on POP3 and IMAP: if you have a choice, use IMAP. POP3 downloads messages to your device and can remove them from the original server, which causes problems if you access the same account elsewhere. IMAP keeps everything in sync across devices.
Option 3: use a desktop email client
For anyone dealing with three or more accounts regularly, a dedicated email client handles multi-account management better than any browser setup. Apple Mail, Thunderbird, and the Outlook desktop app all let you connect multiple accounts and view them either as separate inboxes in a sidebar or as a single combined inbox.
The combined view is what makes this worth it. Instead of switching between tabs or accounts, you see one chronological list of everything, and you can reply from the correct address directly from that view. Most clients let you set a default sending address per account, so there's no risk of sending from the wrong one.
Apple Mail is the easiest option for Mac users and handles multiple accounts with minimal setup. Thunderbird is free, runs on Windows, Mac, and Linux, and supports as many accounts as you need. The Outlook desktop app is the most featured but works best if you're already in the Microsoft ecosystem.
Switching between Google accounts without logging out
If both accounts are Google accounts and you just want to jump between them without a full consolidation setup, Gmail's multi-account sign-in removes the login friction. Click your profile picture in the top right of Gmail, then 'Add another account.' Once added, switching between accounts takes one click from that same menu.
Each account stays in its own tab, so the inboxes stay separate. But you're not logging in and out each time, which is the part that eats time.
Accessing someone else's inbox: email delegation
If you need to read or reply to emails in another person's inbox rather than a second account of your own, delegation is the right tool. The account owner grants you access and you can read, send, and manage their email without needing their password.
In Gmail: The account owner opens Settings, goes to the Accounts and Import tab, and clicks 'Grant access to your account.' They enter your email address and send an invite. Once you accept, their inbox appears under your Gmail account.
In Outlook: The account owner shares their mailbox with you via their account settings. You access it in the desktop app through File, then Open and Export, then Other User's Folder.
Delegation is mostly used in professional settings: an assistant managing a colleague's inbox, a team sharing access to a central account, or someone covering while a colleague is out. The key advantage over sharing login credentials is that access can be revoked easily without changing the account password.
Choosing the right way to look at emails from a different account
Forwarding suits people who just want everything arriving in one place and don't need to reply from the original address. Adding the account via IMAP is better when you need to send from both addresses. A desktop client is worth setting up when you're regularly managing three or more accounts and want a single view of all of them.
Multi-account sign-in covers the case where both accounts are Google accounts and you mainly want to cut out the login step. And delegation applies specifically to accessing another person's account.
The common thread across all of them is that the manual version, logging in and out of separate inboxes and trying to keep track of what's where, is the option that costs the most time while feeling like it costs the least.
When your inboxes are together, keeping up is easier
Consolidating your accounts solves the access problem. But for professionals who run deals, manage clients, or coordinate teams through email, access is only half of it. You can have everything in one inbox and still spend an hour a day deciding what needs attention, drafting replies, and chasing threads that went quiet.
Consolidating your accounts solves the access problem. What it doesn't solve is the volume inside that inbox once everything arrives in one place. For professionals running deals, managing clients, or coordinating teams through email, that's often the harder problem. Fyxer works inside Gmail and Outlook to handle it: it organizes incoming mail automatically by category and writes draft replies in your voice before you've opened the message. If you're dealing with high email volume across multiple accounts, it's worth looking at alongside the guide to managing multiple email accounts.
Looking at emails from a different account FAQs
Can I read emails from a Gmail account while logged into an Outlook account?
Yes. You can either set up forwarding in Gmail to send incoming emails to your Outlook address, or add your Gmail account directly to Outlook via IMAP. The IMAP option lets you reply from your Gmail address while staying inside Outlook. Go to File, then Add Account in Outlook desktop, or Settings, then Sync email in Outlook web, and follow the steps to connect Gmail.
Will forwarded emails still arrive if I don't have the original inbox open?
Yes. Forwarding is handled by the email server, not your device. As long as forwarding is enabled in your account settings, emails sent to the original address will be forwarded automatically, whether or not you have that inbox open. The forwarding continues to run in the background until you disable it.
What's the difference between adding an account via IMAP and email delegation?
Adding an account via IMAP gives you access to your own second email address from within your primary inbox. You're managing email that belongs to you, just from a different account. Delegation gives you access to someone else's inbox. The account owner grants you permission, and you can read, reply, and send on their behalf. The two are designed for different situations: IMAP consolidation for personal multi-account management, delegation for professional access to a shared or colleague's inbox.
.jpg&w=3840&q=75)
.jpg&w=3840&q=75)
.jpg&w=3840&q=75)