Sending e-mails from your site is generally possible. There are a – however – a few things to consider.
Since March 15, 2022, there are limits at the outgoing mail servers regarding the e-mail volume of each site. These limits are meant to prevent the abuse of unsecured applications by spammers, or mitigate its impact so that it does not affect the mail utilisation of other users.
The limits are imposed in a way that mails beyond the limit are queued up, until after the passing of a 24-hour period, the quota is restored again. If the daily limit is reached, subsequent mails will be held back until the next day. If your site's mail settings are not properly configured, the daily limit is 50 mails. Please note that one mail is counted per recipient address (To, CC, BCC).
What you need to observe anyway
The most important setting is the sender address (
The same address should be used for the
What you need to do to send more e-mails
Your sender addresses (
You can request a further increase in resonable cases: Create an incident with service 'Webhosting'. Use the variant Selfservice – the one with login. This serves as prove of your permission. The ID of the functional account should be selectable as an option in Affected login. Please also provide the domain name of your site, the sender address that you use, and of course the new limit you want.
Configuration for different use cases
You can use PHP's
PHP with framework
if you use a framework, configuration of e-mail parameters should be described in the framework's documentation. Many frameworks use PHPMailer, where the property
... with "WP Mail SMTP"
With the plugin WP Mail SMTP the „Other SMPT“ Mailer can be used and set up properly. Enter your sender address as From Email, und check Force From Email. Also check Set the return-path to match the From Email.