SMTP Relay Configuration Guide


(Nexiwave SMTP Relay service is part of Nexiwave Enterprise service. Please contact Nexiwave for setup.)

Nexiwave SMTP Relay Service is 100% compliant to Internet Mail protocol (e.g. SMTP) and guaranteed to work with ALL business telephone systems:

How to

After Nexiwave has enabled SMTP Relay for your account, simply configure SMTP Auth with your email server (or client) with the following info:

Relay Server:
Port: 587
Username <your Nexiwave username>
Password <your Nexiwave password or Nexiwave RELAY_LOGIN password *>

Standard Practice

Nexiwave recommends to configure Nexiwave SMTP Relay Service into your local mailhost (instead of directly into your mailclient), eg:

your mailclient -> local mailhost-> Nexiwave SMTP Relay Service

So, in the event of network connectivity issues, your local mailhost can queue emails and resubmit according to the SMTP Protocol. This is because most mailclients do not have queuing and resubmission functions.

(This is also the default standard practice in most mail delivery setup)


  • Create separate Nexiwave RELAY_LOGIN password via Nexiwave portal: Login -> Settings menu -> Additional Credentials -> SMTP Relay Login:


SMTP Relay Configuration for Mitel NuPoint UM

SMTP Relay Configuration for Shoretel Products

SMTP Relay Configuration for Avaya IP Office

SMTP Relay Configuration for Cisco Unity

SMTP Relay Configuration for Postfix Based System

SMTP Relay Configuration for SendMail Based System

SMTP Relay Configuration for Asterisk and SendMail

SMTP Relay Connector for Microsoft Exchange Server


Terms of Use
© Copyright 2023 Nexiwave
Just leave the password field empty.

If we fail to log you in (empty/wrong password), we will send you a secure one-time Login Link via email. You can just retrieve the email and click the Login Link to log into your Nexiwave account without a password.
Would you like to receive a Login Link to log into Nexiwave without a password?
Our welcome email has been rejected by your email server. Email delivery is REQUIRED so you can receive voicemail transcript from Nexiwave.

Please allow email delivery from Nexiwave by:

Please try register again after you have fixed this issue.
We have just emailed you a Login Link to .

Find the email and click the secure Login Link to log into your Nexiwave account WITHOUT a password.