Postmastery supports SendGrid clients with template for multiple webhook endpoints

Postmastery provides delivery monitoring and optimisation services on top of various email delivery environments. Sometimes we offer this service on top of on-premises MTA (like PowerMTA or EmailSuccess) and sometimes on top of cloud-based ESP’s (like Mailchimp or Smartfocus). A prerequisite of delivery monitoring and optimization services, is to get the right data points like […]

Read more

Categories: Solutions

ISP information: Orange.fr

Postmastery assists various senders every day with delivery monitoring tools and consultancy services. In order to assist the global email senders community, we are happy to share some ISP specific information we collected over the last few years. This blog post looks at some more details, this time related to Orange.fr. Orange: the biggest French ESP […]

Read more

Categories: Providers

Delivery issues at LaPoste.net resolved

On Friday April 6, 2018, Postmastery’s Email Delivery Analytics detected serious delivery issues at LaPoste.net. The most frequent SMTP errors we detected were: 421 4.3.2 No system resources 421 4.3.2 All server ports are busy 451 4.7.1 Service unavailable – try again later 421 4.7.0 lpn-prd-vrin0xx Error: too many errors 421 4.4.2 lpn-prd-vrin0xx Error: timeout […]

Read more

Categories: Deliverability, Providers

Artboard facebook google+ instagram linkedin maps pinterest twitter vimeo youtube world