Coral: msmtp intro

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Coral :  MSMTP | MSMTP - Detail

MSMTP - Introduction

The majority of SMTP clients use the Windows registry. These are not suitable for portability. The Uniform Server uses the open source msmtp client. It's flexible, relative easy to set-up, and more importantly it's portable. This page covers the configuration sub-menu which allows you to configure and test the msmtp client.

UniServer 8-Coral
  Quick Start
  Db Backup
  Main Index


  • MSMTP Integrated client.
  • Pre-configured configuration template file.
  • Controller to set default account - quick switching between accounts.
  • Controller includes simple e-mail form for testing account configuration.



MSMTP has been pre-configured and enabled in the PHP configuration files. MSMTP itself uses a separate configuration file which has been pre-configured with example accounts. Before you can use PHP e-mail functions you need to set-up at least one account. Generally this account is your ISP email account, but for portability, consider setting up a free email account such as Hotmail or Gmail.

Only one account (the default account) is active at any one time. The Uniform Server allows you to easily switch between the accounts you have configured and set one of these as the default account. After selecting an account, you can test it using the builtin email tester.


Edit MSMTP Configuration

MSMTP is configured via the msmtprc.ini file. This has been pre-configured with three account skeletons (MyISP, Hotmail and Gmail). You can add as many accounts as you like, but each must have a unique account name.

Open this file either by using UniController or by directly using a text editor.

Server Configuration > MSMTP > Edit MSMTP Configuration

There are three pre-configured account skeletons (MyISP, Hotmail and Gmail). You can add as many as you like, but each must have a unique account name.

The pre-configured accounts are templates. You must change the following for at least one account and assign it as the default.

1) MyISP

  • Substitute with your ISP's smpt server
  • Substitute with your real email address

2) Hotmail

  • Substitute with your login email address
  • Substitute fred123 with your login password

Note: To relay via Hotmail you will need to regularly sign into your account. [??]

3) Gmail

  • Substitute with your login email address
  • Substitute fred999 with your login password

Default Account

  • Change "account default : Hotmail" with the account name you want to use
# 1 === Your ISP account ========================

account MyISP
auth off

# 2 === A freemail account at Hotmail ===========

account Hotmail
tls on
tls_certcheck off
auth on
password fred123

# 3 === A freemail account at Google ============

account Gmail
tls on
port 587
tls_certcheck off
auth on
password fred999

#==== Set a default account =====================

account default : Hotmail

Note 1: PHP will use whichever account you have assigned as default, which is currently set to Hotmail.
Note 2: With more than one account configured you can easily select a default.
Note 3: The drop down menu for selecting a default account lists all accounts in the configuration, so you probably will want to delete any accounts you have not configured.


Default Account

You can manually edit the configuration file msmtprc.ini and set the default account, or alternatively use UniController’s sub-menu:

Server Configuration > MSMTP > Default Account

This is a dual-purpose menu allowing you to set a default account and send a test email using this account.

Set Default Account

  • Click the drop-down menu 1).
    This displays all accounts contained in the configuration file.
  • To set a default account, click an account name.

Coral msmtp 1.gif


Send Test E-Mail

Server Configuration > MSMTP > Send Test E-Mail

This is a dual-purpose menu allowing you to set a default account and send a test email using this account.

Send Test Email

  • Enter recipient's email address 2)
  • Optionally enter a subject 3) or use default.
  • Optionally enter a message 4) or use default.
  • Click Send Email button 5)

Coral msmtp 1.gif


View Log

Server Configuration > MSMTP > View Log

This menu option provides a convenient short cut allowing you to view the MSMTP log file. If you are experiencing problems sending e-mails, this should be your first port of call; it may shed light on a particular issue.

An example of the log content is shown on right. There are three lines which have been split to fit this web page.

Log file: UniServer\msmtp\msmtp.log

Feb 04 14:07:10 tls=on auth=on mailsize=117
smtpstatus=250 smtpmsg='250 2.0.0 OK 1265292428 7sm2124401eyg.17'

Sep 22 14:08:53 tls=off auth=off mailsize=108
smtpstatus=250 smtpmsg='250 ok:  Message 497320898 accepted'

Jan 24 11:12:14 tls=on auth=on mailsize=100
smtpstatus=250 smtpmsg='250 2.6.0 <>
Queued mail for delivery' exitcode=EX_OK


Where to next

See the next page for more details.

msmtp - Detail