Ask HN: What are the best open source solution for self hosted email?

[ya3ad]

I would like to host an email service for around 150+ people. It's not possible for us to offroad Protonmail which focuses on security. What are the some best open source email solution available?

[dozzie]

Postfix with Dovecot or Cyrus IMAP, along with a good sysadmin.

[ya3ad]

I am don't have much knowledge as system admin. For security measure what action can be taken?

[dozzie]

For 150 users you need a sysadmin. Go and hire one.

[xstartup]

Please stop with this advertisement. Yea, we know you are a sysadmin but whether its 150 users or 1500, it's not you who is going to decide if he needs one or not.

[dozzie]

> Please stop with this advertisement.

And I am advertising what exactly?

> [...] whether its 150 users or 1500, it's not you who is going to decide if he needs one or not.

Indeed, it's not me who decides, it's the reality that decides.

[znpy]

Postfix + Dovecot

[ya3ad]

I am don't have much knowledge as system admin. For security measure what action can be taken?