Table of Contents
MailPlus Server
Installation and Configuration
DNS Settings
- Add a SPF record to all your domains: type = TXT, host = “@”, text = “v=spf1 mx mx:other.smtp.host ~all”, TTL=600 sec
- Add a DKIM record: type = TXT, host = “default._domainkey”, text = “v=DKIM1; p=–your public key–”, TTL=600 sec
- Add a DMARC record: type = TXT, host =“_dmarc”, text = “v=DMARC1; p=none”, TTL=600 sec
See Security
MailPlus Server
- Install MailPlus Server and MailPlus by following DiskStation Manager - How to set up MailPlus Server on your Synology NAS
- Give your clients permission to access MailPlus
- Add an MX record to your domain, which points to your mail server. It is good practise to enter an MX record like “mail.yourdomain.tld”, and then point the host “mail” to your mail server.
- Make sure to enter “mail.yourdomain.tld” as Mail System Hostname during server setup. You can later change it in the “Protocol” settings tab of MailPlus Server.
- You can now receive email to “you@mail.yourdomain.tld”. If you want to allow a shorter form, or more than one domain as the user's domain, add additional domains in the format “yourdomain.tld” and “anotherdomain.tld” under Protocol –> SMTP –> Additional Domain
- If your Synology user name is not the same as your email name, e.g. user “user” with email “username@yourdomain.tld”, then go to Protocol –> Alias to enter “username” as an alias.
- Set “Activate all users by default” in Account –> Settings
- In MailPlus, go to user –> Settings, and enter your signature under Settings –> General, and additional SMTP servers if required under Settings –> SMTP.
- By default, “user@mail.yourdomain.tld” is added as SMTP outgoing server in user –> Settings in MailPlus
MailPlus Web Client
- Install MailPlus Server and MailPlus by following DiskStation Manager - How to set up MailPlus Server on your Synology NAS
- Give your clients permission to access MailPlus
- Add an MX record to your domain, which points to your mail server. It is good practise to enter an MX record like “mail.yourdomain.tld”, and then point the host “mail” to your mail server.
- Make sure to enter “mail.yourdomain.tld” as Mail System Hostname during server setup. You can later change it in the “Protocol” settings tab of MailPlus Server.
- You can now receive email to “you@mail.yourdomain.tld”. If you want to allow a shorter form, or more than one domain as the user's domain, add additional domains in the format “yourdomain.tld” and “anotherdomain.tld” under Protocol –> SMTP –> Additional Domain
- If your Synology user name is not the same as your email name, e.g. user “user” with email “username@yourdomain.tld”, then go to Protocol –> Alias to enter “username” as an alias.
- Set “Activate all users by default” in Account –> Settings
- In MailPlus, go to user –> Settings, and enter your signature under Settings –> General, and additional SMTP servers if required under Settings –> SMTP.
- By default, “user@mail.yourdomain.tld” is added as SMTP outgoing server in user –> Settings in MailPlus
MailPlus iOS Client
- Install MailPlus Server and MailPlus by following DiskStation Manager - How to set up MailPlus Server on your Synology NAS
- Give your clients permission to access MailPlus
- Add an MX record to your domain, which points to your mail server. It is good practise to enter an MX record like “mail.yourdomain.tld”, and then point the host “mail” to your mail server.
- Make sure to enter “mail.yourdomain.tld” as Mail System Hostname during server setup. You can later change it in the “Protocol” settings tab of MailPlus Server.
- You can now receive email to “you@mail.yourdomain.tld”. If you want to allow a shorter form, or more than one domain as the user's domain, add additional domains in the format “yourdomain.tld” and “anotherdomain.tld” under Protocol –> SMTP –> Additional Domain
- If your Synology user name is not the same as your email name, e.g. user “user” with email “username@yourdomain.tld”, then go to Protocol –> Alias to enter “username” as an alias.
- Set “Activate all users by default” in Account –> Settings
- In MailPlus, go to user –> Settings, and enter your signature under Settings –> General, and additional SMTP servers if required under Settings –> SMTP.
- By default, “user@mail.yourdomain.tld” is added as SMTP outgoing server in user –> Settings in MailPlus