Here are server info for email clients.
Protocol server port security
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IMAP mail.openmbox.net 993 SSL
SMTP mail.openmbox.net 587 StartTLS
For now we have two MX servers for incoming messages.
Type server location
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Primary mail.openmbox.net Durham, US
Secondary mail2.openmbox.net Limburg, NL
The mail server is run totally by open source software. Follows are software info.
Software version
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Ubuntu 20.04.5
Postfix 3.4.13
Dovecot 2.3.7.2
OpenDKIM 2.11.0
policyd-spf 2.9.2
Snappymail almost the latest version
Certbot 1.31.0
Apache 2.4.41
Here are some limits you may want to know.
- Disk quota limits to 200 MB
- Message size limits to 20 MB
- Attachment size from webmail limits to 5 MB
- Sending amount limits to 10 mails by minutes, 150 mails by days
The following actions may lead to your account and/or IP being banned.
- Sending spam
- Conducting any activity which breaks the laws
- Using your Email address to abuse other services
- Other circumstances which aren't listed here
For privacy care we promise that:
- Never scan users' email
- Never sell your data to others
- Do not store users' personal data
- Do not keep track of logs
- Do not use cookies (except webmail)
We have daily automated testing for delivery capacity. The follows are providers we have covered.
- Gmail
- Outlook/Hotmail
- Yahoo
- iCloud
- ATT/Currently
- Fastmail/Pobox
- AOL
- GMX/Web.de
- T-Online
- Vodafone
- Mail.de
- Freenet.de
- Free.fr
- ProtonMail
- Yandex
- Mail.ru
- Orange
We are based on open source. As feedback we would like to share our key code to open source community. For example, the methods we use to manage user accounts and passwords have been uploaded to MetaCPAN. If you examine the following code, you will see that we don't log any private data of users.
https://metacpan.org/pod/App::OpenMbox
We also wrote a perl client for sendmail using OpenMbox or any other smtp servers. And an auto test module was included for delivery capacity.
https://metacpan.org/pod/App::OpenMbox::Client
https://metacpan.org/pod/App::OpenMbox::Test