Emails Personnalisés inclus avec NDD & Hébergement Mutualisé 26 Avril 2024 Créé par Aurélien 2mn de lecture

Email error codes linked to multiple mailings: L-DSDRXX or L-DESTXX

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Introduction

Welcome to our documentation dedicated to resolving errors caused by sending a large volume of email from a single sender to a single recipient and to managing the sending of emails on LWS. Here you will learn all about these errors and how to manage them effectively to avoid any unwanted blocking of your emails. Our aim is to provide you with clear and concise information to help you get the most out of your email service.

This documentation only concerns the quotas and error codes linked to the use of standard email addresses supplied with your hosting package. The same documentation exists for quotas and error codes relating to the use of professional email addresses

I. Understanding L-DSDRXX and L-DESTXX errors

L-DSDRXX errors occur when our system detects that a large number of emails have been sent from email addresses in the same domain to email addresses in the same domain that are different from the sending domain.

L-DESTXX errors occur when our system detects that a large number of emails have been sent to the same destination email address.

To resolve this problem, it is essential to understand its origin and take appropriate action.

[tips_info] The limitations are not the same for the "standard" email addresses supplied with your hosting package and the professional email addresses offered by LWS[/tips].

This means that if one or more "standard" email addresses are blocked, the business email addresses attached to the domains can continue to send emails until they reach their own limits.

II. Quotas and blocking times for L-DSDRXX and L-DESTXX type errors

Error code	Error description	Reference period	Blocking time	Blocking target
L-DSDR01	the domain's email addresses have sent more than 120 emails to the same domain other than the sending domain during the reference period	1 hour	1 hour maximum	emails sent from the relevant sender domain to the relevant recipient domain
L-DSDR11	the domain's email addresses have sent more than 1,200 emails to the same domain other than the sending domain during the reference period	24 hours	24 hours maximum	emails sent from the relevant sender domain to the relevant recipient domain
L-DEST01	More than 240 emails sent to the same email address during the reference period	1 hour	1 hour maximum	emails sent to the relevant recipient email address
L-DEST11	More than 2,400 emails sent to a single email address during the reference period	24 hours	24 hours maximum	emails sent to the recipient email address concerned

This block is applied to prevent unsolicited mass mailings to the same recipient. Large volumes of emails sent to the same recipient are often the result of abnormal use of the email service.

The system calculates the number of emails sent to the same recipient during the last reference period. The blocking time indicated in the table above is the maximum value, corresponding to a massive and rapid sending. If the blocking follows a regular flow of emails sent to the same recipient, the effective blocking time will generally be much reduced.

III. Unblocking your Mail Service

You do not need to take any action to unblock a message sent from your email address(es) to the recipient concerned. It will automatically be reactivated after the blocking period.

However, it is advisable to find and resolve the source of this mass mailing to numerous recipients in order to prevent any further blocking.

IV. Preventing L-DSDRXX and L-DESTXX errors

If you are the source of the mass e-mail:

If this blocking occurs as a result of you sending mass mailings to the same recipient, we recommend that you check the reasons for this mass mailing. The limitations proposed correspond to a quota which, if exceeded, would not allow the recipient to correctly process the emails received. We invite you to check the reasons for this mass mailing and to restrict the number of mailings or to group the information together in the same email to limit the number of mailings. In the case of notifications, it may be a good idea to use a more efficient notification system. In general, users who receive too many notifications over a short period no longer take them into account after a certain time.

If you are not the source of the mass mailings :

Run an anti-virus scan on the devices where your email addresses are configured. Use tools such as TotalAV, PCProtect, McAfee or Avast to remove all traces of viruses or malware. Then regularly change the passwords to your email accounts.

If your site sends emails with your email address, check that it is secure and that the forms have the Captcha function, which prevents robots from using your forms to send mass emails.

We have a number of documentations that explain how to set up this type of functionality on WordPress, Prestashop and Joomla sites.

Conclusion

We hope that this documentation has been useful in helping you to understand and resolve L-DSDRXX and L-DESTXX errors and to improve the management of your LWS mailings. By following the steps explained here, you will be able to prevent unwanted blocking and optimise your email communication with your recipients. Don't forget to take security measures into account, in particular by changing your password regularly. If you encounter any difficulties or require further assistance, please do not hesitate to contact our technical support team, who are always ready to help you use our hosting services.

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