2. Apps‎ > ‎a. Mail‎ > ‎

- IMAP/POP3 settings

Google Sync for Microsoft Office (GASMO)

This plug-in tool from Google for Microsoft Outlook does not use IMAP or POP3 settings.  If you will be using GASMO, please go to the Microsoft Outlook Setup page.

IMAP and POP3

See the differences in the following table.  Specific details for IMAP and POP3 follow the table.

 Advantages  Disadvantages
 GASMO
Learn more
  • Easy to set up
  • Synchronizes email, contacts, calendar
  • Microsoft Outlook for Windows only
 IMAP
  • Synchronizes email online and across all devices (computers, phones, tablets)
  • Supported by all email clients
  • Easy to recover email upon loss of one device
  • Too slow or problematic for the worst of internet connections
 POP3
  • Faster than GASMO or IMAP
  • For very slow, unstable internet connections
  • Supported by all email clients
  • Good for keeping email out of your online account with small storage limits.  (Note: Google Apps accounts have a 30G limit so this is not an advantage)
  • Special configuration required when accessing the same account from two computers (email client).  Refer to Google's "recent:" mode.
  • By default, Google places spam in the online Spam folder which will not be downloaded to the client.  Requires overriding (disabling) Google's spam control and forcing all mail into the Inbox for download to the client.
  • All email is downloaded to the client.  No online backup is maintained for recovery.
  • No synchronization across all devices (computers, phones, tablets) is available.

More POP3 vs IMAP References:

IMAP  
(Recommended)

Many clients will automatically configure the appropriate IMAP connection settings for your account, but confirm that the connection settings your client configures are the same as what's listed below.

If you're using a client that's not listed above, you can also use the following information to configure your IMAP. If you have problems, contact your mail client's customer support department for further instructions.

  • Incoming Mail (IMAP) Server - Requires SSL
    • imap.gmail.com
    • Port: 993
    • Requires SSL:Yes
  • Outgoing Mail (SMTP) Server - Requires TLS
    • smtp.gmail.com
    • Port: 465 or 587
    • Requires SSL: Yes
    • Requires authentication: Yes
    • Use same settings as incoming mail server
  • Full Name or Display Name: [your name]
  • Account Name or User Nameyour full Google Apps address (username@your_domain.com)
  • Email address: your full Google Apps address (username@your_domain.com)
  • Password: your Google Apps password

If your client does not support SMTP authentication, you won't be able to send mail through your client using your Gmail address.


POP3

If you're not using one of the clients or devices above, we offer general instructions on configuring some clients below. If you encounter difficulties, we suggest contacting your mail client's customer support department -- we're unable to provide assistance for clients not listed above.

Incoming Mail (POP3) Server - requires SSL: pop.gmail.com
Use SSL: Yes
Port: 995
Outgoing Mail (SMTP) Server - requires TLS or SSL: smtp.gmail.com
Use Authentication: Yes
Port for TLS/STARTTLS: 587
Port for SSL: 465
Server timeouts Greater than 1 minute, we recommend 5
Full Name or Display Name: [your name]
Account Name or User Name: your full email address (including @your_domain.com)
Email Address: your email address (username@your_domain.com)
Password: your Google Apps password

Unless you're using recent mode to download mail to multiple clients, make sure you've opted not to leave messages on the server. Your POP settings in the Google Apps online Gmail settings are what determines whether or not messages stay on the server, so this setting in your client won't affect how Gmail handles your mail.

If your client does not support SMTP authentication, you won't be able to send mail through your client using your Gmail address.

If you're having trouble sending mail but you've confirmed that encryption is active for SMTP in your mail client, try to configure your SMTP server on a different port (465 or 587).

Username and password not working? Some apps require you to also turn on access for less secure apps before setting up POP/IMAP connections.