We offer our employees a SquirrelMail interface to their mail, working in conjuction with Mercury32.  A lot of employees also like Mail2Web, a free webmail service that works with just about all email accounts.

Is there a web browser interface available

[quote user="bstiefel"]Is there a web browser interface available[/quote]

You post this in the Pegasus Mail forum, so I assume you want an e-mail client using the web. Pegasus Mail doesn't offer that, as the web services needs to be offered by the Mail server software (e.g. your ISP).

David Harris's mailserver product Mercury/32 can be used with 3rd party webmail.

[quote user="bstiefel"]Is there a web browser interface available[/quote]

Pegasus is an email program not a mail provider; you'd need to get an email account--from an ISP or other mail provider--to use it, anyway.

But if you were using Pegasus with an email account and were away from your machine, so that Pegasus wasn't available to you, you could almost certainly visit a web-interface for the account instead--most, if not all, ISPs make these available, and certainly other mail providers are likely to offer that. If you had, for example, a GMail account you could use it with Pegasus Mail:

http://mail.google.com/support/bin/answer.py?answer=13287

However, if you were away from your machine and borrowing someone else's to check your mail, you could visit Google's web interface for GMail, instead:

https://mail.google.com