I've a virtual server not a ksm but with lighttpd and mysql and postfix. Can I use it to replace my existing free webmail and what is a good software? I also want to use pgp if it's possible?

  • What are your other requirements besides GPG support? There's tons of webmail applications available.
    – gertvdijk
    Dec 25, 2012 at 12:06
  • I'm new to gpg support and I wonder how it would work in a hybrid environement? I don't know much people using GPG and I wonder why the free webmailer doesn't support it because it's already 2013?
    – Micromega
    Dec 25, 2012 at 12:18

3 Answers 3


Squirrelmail has everything you're asking for.

squirrelmail screenshot

Has good plugin support for pgp as well.


Horde's IMP features GPG/PGP encryption as well as S/MIME support. It's rather a somewhat more complex framework (in which IMP is just one application), but in my opinion, it has a fairly high quality standard and good user experience compared to most other open source webmail software.


Horde Portal Screen


Rainloop, hands down. Website here. Screenshot below.

enter image description here


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