Setup and Configuration

Webmail Workflow

Webmail3 can be configured easily using domain SRV records for any mailbox.


Host fetch

Webmail3 scans your domain SRV records following RFC6186 for IMAP and SMTP hosts.


Mailbox login

Webmail3 authenticates provided credentials with your IMAP host server using STARTTLS/SSL and "normal-password".


Sending emails

To process outgoing emails, Webmail3 connects using STARTTLS/SSL and "normal-password" to your SMTP host server.

Setup DNS Records

Follow these three easy steps to setup DNS SRV records for webmail3 access.

1. Get your email host URLs.

Find your 'email imap and smtp hosts' on your email service provider's platform.

2. Add DNS SRV record for IMAP

Enter following DNS record for IMAP. Replace '' with your host IMAP URL. Ports 993 (SSL) and 143 (STARTTLS) are supported.
Name          Type Priority Weight Port  Host
_imaps._tcp SRV 0           100      993

3. Add DNS SRV record for SMTP

Enter following DNS record for SMTP. Replace '' with your host SMTP URL. Ports 465 (SSL) and 587 (STARTTLS) are supported.
Name                   Type Priority Weight Port  Host
_submission._tcp SRV 0           100      587

Test Your Configuration

Enter your email address to lookup DNS SRV records

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