…ing messages via the Runbox servers. SMTP Client Settings Secure/Encrypted SMTP Outgoing Server (SMTP): mail.runbox.com Port: 587 with STARTTLS or Port: 465 with TLS/SSL Secure/Encrypted Connection: Yes/On Authentication: Password Note: For information about the differences between using port 587 or port 465 (legacy port) please see our help document about Connection Encryption. Incoming Email (IMAP and POP) You might also need our IMAP or POP ser…
You are here:
Runbox Help > Search results for 'SMTP'
Search result for " SMTP "
…Connection Encryption. Email Program/App Settings Thunderbird To find the SMTP server settings, in the Menu go to: Tools > Account Settings Click on “Outgoing Server SMTP” at the bottom of the left panel Click on your Runbox account in the list of account, and then click “Edit” Apple Mail Mail > Preferences > Account tab Click on the Runbox account in the left pane Click on the “Server Settings” tab in the right pane Uncheck “Automatically manage…
Filed Under: Other
…ngs you will get a username/password error when trying to use our outgoing SMTP server. Secure/Encrypted IMAP, POP and SMTP Incoming Mail Server Settings Service Server Port Encryption Authentication IMAP mail.runbox.com 993 TLS/SSL Password POP mail.runbox.com 995 TLS/SSL Password Outgoing Mail Server Settings Service Server Port Encryption Authentication SMTP mail.runbox.com 465 TLS/SSL Password 587 STARTTLS Password Note: Port 465 may offer bet…
…l) or POP (Post Office Protocol). When the program sends email it will use SMTP (Simple Mail Transfer Protocol). You might see these different setting names in your email program which is why we have mentioned them here. We strongly recommend you use IMAP to access your email as this means both incoming and outgoing email are stored on our system along with other things like the status of your messages (flagged, replied to, forwarded). This means…
…ctivate 2FA your usual account password will no longer work for IMAP, POP, SMTP, FTP and Cal/CardDAV services. This means you will need to use Application Passwords (see below) for all email, calendar, address book and FTP apps/programs you are using. You will still be able to access your email using our webmail service. When Two-Factor Authentication (2FA) is enabled, you will have the following options: Timed One-Time Passwords (TOTP) To use thi…
…P and HTTPS we also have IMAP and IMAPS. The same is true for POP/POPS and SMTP/SMTPS. Despite what might be technically correct, you will mostly see these protocols referred to as IMAP, POP and SMTP regardless of whether they are secure or not. Ports and Encryption Some ports are specified as being used for IMAPS, POPS and SMTPS, For example: IMAPS port 993 POPS port 995 SMTPS port 465 In addition if the server supports it, STARTTLS can be used o…
…mail Program Server Settings page with information about the IMAP, POP and SMTP server settings for email programs. The page also includes information about username formats in use with the Runbox servers. Security Issues Email programs not using the Runbox SMTP (outgoing) servers All of the email programs listed above work by sending your outgoing email through our servers using SSL encryption for the connection. However, we have come across some…
“An error occurred while sending mail. The mail server responded: Invalid From address. Please see https://help.runbox.com/identities/.” To send messages from an address that is not your main Runbox username or an alias address on the account that is sending the message you must verify ownership of that address otherwise our servers will not allow you to send the message and present an error similar to the one at the top of this page. To verity y…
Filed Under: Email Clients, SMTP
©2025 Runbox Help