Settings for Common Email Providers Print

Each email provider will require different settings in SixBit. It is impossible to list the settings for all email providers, but as we help users and learn the settings for different providers, we'll add them here in an effort to assist others in the future.

Important (2025): Many providers now require two-step verification and an app-specific password (or "secure mail key") for third-party apps like SixBit. Where applicable, this is noted below.

If you have working settings for your email provider, please feel free to send along your settings to support@sixbitsoftware.com for inclusion in this list.

Provider: AOL
Outgoing Mail Server: smtp.aol.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked on port 465 / Unchecked on port 587
Outgoing mail server port: 465 (if that fails, try 587)

Note: AOL now expects encryption and may require that you enable 2-step verification and generate an app password for use in SixBit instead of your normal account password. If you switch from 465 to 587, uncheck "Mail server requires SSL Encryption" - that box should only be checked when using port 465.

Provider: Yahoo Mail
Outgoing Mail Server: smtp.mail.yahoo.com
Legacy Outgoing Mail Server (no longer recommended): smtp.yahoo.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked on port 465 / Unchecked on port 587
Outgoing mail server port: 465 (or 587 with TLS)

NOTE: Yahoo Mail users must use an app password with third-party apps. If you use port 587 instead of 465, leave "Mail server requires SSL Encryption" unchecked:

1. Sign in to your Yahoo account (account settings, not just the inbox).
2. Go to Account Security or Security.
3. Turn on two-step verification if it isn't already enabled.
4. In the "App passwords" section, choose Generate app password, select an app (e.g., "Other"), and generate the code.
5. Use this generated app password in SixBit's password field for your Yahoo account.

Provider: ATT Yahoo Mail / AT&T Mail
Outgoing Mail Server: smtp.mail.att.net
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked on port 465 / Unchecked on port 587
Outgoing mail server port: 465 (or 587)

Note: AT&T requires a Secure Mail Key (a special password) for third-party apps. Create a Secure Mail Key in your AT&T account and use that in SixBit instead of your normal password. If you use port 587, uncheck "Mail server requires SSL Encryption."

Provider: Apple / iCloud Mail (me.com, icloud.com, mac.com)
Outgoing Mail Server: smtp.mail.me.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Unchecked on port 587 / Checked on port 465
Outgoing mail server port: 587 (465 may also work on some clients)

Note: Apple generally requires an app-specific password for third-party apps; generate one in your Apple ID account (Security -> App-Specific Passwords) and use that in SixBit. Leave "Mail server requires SSL Encryption" unchecked on port 587 - only check it if you switch to port 465.

Provider: Comcast / Xfinity
Outgoing Mail Server: smtp.comcast.net
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Unchecked on port 587 / Checked on port 465
Outgoing mail server port: 587 (if that fails, try 465)

Note: Comcast/Xfinity recommends encryption on port 587 (or 465 if needed) with authentication. Leave "Mail server requires SSL Encryption" unchecked on port 587 - only check it if you switch to port 465.

Provider: Gmail
Outgoing Mail Server: smtp.gmail.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked on port 465 / Unchecked on port 587
Outgoing mail server port: 465 (SSL) or 587 (TLS)

Important (Google change): Google removed the old "Allow less secure apps" option. To use Gmail with SixBit you should enable 2-Step Verification and use an App Password. If you use port 587, leave "Mail server requires SSL Encryption" unchecked:

Generating an App Password for Gmail:

1. Go to your Google Account page.
2. Select Security.
3. Under "Signing in to Google", turn on 2-Step Verification (if it's not already on).
4. After 2-Step Verification is enabled, choose App passwords.
5. Under "Select app" choose Mail (or "Other") and under "Select device" choose the device, then click Generate.
6. Copy the 16-character app password and paste it into SixBit as the password for your Gmail account.

Provider: GoDaddy (Workspace / Professional Email / cPanel)
Outgoing Mail Server: smtpout.secureserver.net
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked on port 465 / Unchecked on port 587
Outgoing mail server port: 465 (SSL) or 587 (TLS)

Note: Authentication is required; use your full email address and password (or any GoDaddy-provided app password). If you use port 587, uncheck "Mail server requires SSL Encryption."

Provider: Hotmail / Outlook.com / Live / MSN (consumer Microsoft accounts)
Outgoing Mail Server: smtp.office365.com (or) smtp-mail.outlook.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Unchecked
Outgoing mail server port: 587

Note: Microsoft's current documented settings for Outlook.com-style accounts use smtp.office365.com on port 587. Leave "Mail server requires SSL Encryption" unchecked - checking it on port 587 will cause an SSL/TLS connection error before SixBit ever gets to checking your username or password.

Provider: Microsoft 365 / Office 365 (business)
Outgoing Mail Server: smtp.office365.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Unchecked
Outgoing mail server port: 587

Note: SMTP AUTH must be allowed for the mailbox/tenant. Use the Microsoft 365 mailbox's full email address as the username and its password (or whatever credential your admin requires). Leave "Mail server requires SSL Encryption" unchecked - checking it on port 587 will cause an SSL/TLS connection error before SixBit ever gets to checking your username or password.

Provider: TDS
Outgoing Mail Server: mail.tds.net
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Unchecked
Outgoing mail server port: 587

Note: TDS uses mail.tds.net for SMTP with encryption and authentication on port 587. Leave "Mail server requires SSL Encryption" unchecked - that box is only for port 465 connections.

Provider: Verizon (verizon.net accounts now hosted by AOL)
Outgoing Mail Server: smtp.verizon.net
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked
Outgoing mail server port: 465

Note: Verizon retired its own email service; verizon.net addresses now authenticate through AOL. Use port 465 and your verizon.net credentials or app password.

Provider: Yahoo Plus Mail / Yahoo Ad-Free
Outgoing Mail Server: plus.smtp.mail.yahoo.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked
Outgoing mail server port: 465

Note: Yahoo Plus also expects encryption and usually works best with a generated Yahoo app password in place of your normal account password.

Provider: Yahoo Bizmail / Yahoo Small Business / Turbify Business Mail
Outgoing Mail Server: smtp.bizmail.yahoo.com
Logon Using SPA: Unchecked
Mail server requires SSL Encryption: Checked
Outgoing mail server port: 465

Note: Yahoo business email requires encryption and authentication; most current guides recommend using an app password for third-party apps.

General tips for SixBit SMTP setup (2025):

• Username is almost always your full email address.
• SPA (Secure Password Authentication) should generally remain Unchecked unless your provider specifically says otherwise (most do not).
• "Mail server requires SSL Encryption" should only be checked when you're using port 465. Port 587 uses a different encryption handshake that this checkbox does not match - if you're on port 587, leave the box unchecked. Checking it on port 587 will cause an SSL/TLS connection error before SixBit ever gets to checking your username or password.
• If a provider offers both 465 and 587, start with the port listed above as "primary," then try the alternate if you hit connection issues - and flip the SSL Encryption checkbox to match the port as described above.
• When in doubt, check your provider's current help pages for any changes to app-password, 2FA, or SMTP AUTH requirements.