Any of the following errors:
Email could not be sent from Access RDB.
Error: Email could not be sent.
New SMTP details needed.
SMTP error.
451 4.7.0 Temporary server error. Please try again later.
535 5.7.3 Authentication unsuccessful.
SMTP authentication failed after sending password.
Check your username/password or your SMTP server's auth settings.
Make sure you send over the full error message you are receiving please as the screenshot only shows the top part of the message and the issue is normally specified lower down.
There should be a link on the bottom of the error saying something like Click here to copy the above details to the clipboard - if you can do that and then paste the error into a Notepad file and attach the file to the ticket, support can look and see what the error actually is.
You will need to check their SMTP Mail settings by following the steps below:
From the Ribbon, click Options and then click User preferences.
Click Mail service and check and correct the items below :
Server , Port and authentication method (should be the same for all users).
Username (normally email address).
Retype the password.
Remove the check from the SSL Checkbox.
Click Save and close.
Try re-sending the email.
📌 Note: If you are still not able to send an email contact the mail provider to get the correct credentials. If the credentials are correct ,your mail provider might need to look into the issue further.
If your login details work in other areas, such as Outlook or Office365.com but not for sending emails from RDB, this could be due to a recent change Microsoft have made to turn off the ability to send SMTP emails by default for new accounts.
To check or change this setting:
Log in to the Microsoft 365 admin center.
Go to Users and select Active users.
Select the user and click Mail.
Click Manage email apps and verify the value of Authenticated SMTP (checked = enabled, unchecked = disabled).
Please also ensure that Security Defaults is not enabled as this may prevent/stop Authenticated SMTP.
⚠️ Important: If you have set up 2 factor authentication , your email password would no longer work in Access RDB. For more information please see Access RDB: 2 Factor Authentication (2FA) for Office 365.
📌 Note: Microsoft have recently enabled a feature called Modern Authentication for eMail accounts - the current release of RDB now supports this. This article - Access RDB: Install Access RDB 6.7 SR12 - explains how to install it. The article Access RDB: Sending eMails using Modern Authentication explains how to set up RDB to send eMails using Modern Authentication.