General Insights on Email Infrastructure and Deliverability
PowerMTA 5.0: Using a proxy for email delivery
2020/02/14 by Maarten Oelering.
One new thing we are particularly excited about is PowerMTA 5.0 support for forward proxies: this allows delivery from IPs which don’t need to be co-located on the same server or subnet. In this blog post, we will explain this with a few use cases and introduce Postmastery’s MTA proxy for a ready-to-go solution. Use […]
Categories: Authentication, Deliverability, General, PowerMTA
Google Postmaster Tools (GPT) unlocked via Postmastery Delivery Analytics
2019/12/04 by Maarten Oelering.
Postmastery took an important step in their objective to monitor all relevant email delivery metrics in one application: adding Google Postmaster Tools data. What is Google Postmaster Tools (GPT) For senders that monitor their reputation, Google Postmaster Tools (GPT) is an important resource. For those who haven’t yet heard about it, GPT is a website […]
Categories: Authentication, Deliverability, General
SFR Deliverability: Explaining error codes (GU_EIB) and the ongoing error threshold
2019/10/07 by Jérôme Gays.
Before getting to the actual matter, it is important to brush upon a few relevant chronological events in the past regarding SFR. Even though SFR has been carrying this name since 1987, the many other departments in this group have changed quite a lot ever since. During the past 10 years, SFR has made the […]
Categories: Deliverability, General, Providers
PowerMTA 5.0 released
2019/09/30 by Maarten Oelering.
On 17 September, PowerMTA 5.0r1 was released. This is the first general availability (GA) release. Before this release PowerMTA 5.0 was tested in a long beta programme. Various new PowerMTA features Probably the biggest change since 4.5 is the completely new web monitor. The web interface is now a modern ‘single page application’ (SPA). The […]
Categories: Authentication, General, PowerMTA
Check your (Power)MTA settings: Numericable and Noos MXs records moved to SFR
2019/09/04 by Jérôme Gays.
In 2014, French ISPs Numericable and SFR merged to become the Altice France group. Numericable was itself the result of a merger between NC Numericable and Noos in 2007. Up to now, mailboxes at these ISPs were managed independently using different MXs and anti-spam protection. Noos and Numericable domains on one end and SFR domains […]
Categories: Authentication, Deliverability, General, Postfix, PowerMTA, Providers
Brand Indicators for Message Identification (BIMI) ready for take off?
2019/05/16 by Willem Stam.
BIMI is the new open standard for visualising your brand in the recipient’s mailbox with an image. Why BIMI? The new standard uses DMARC, leading some to call BIMI ‘DMARC 2.0’. While almost all previous authentication and identification methods work in the background, BIMI is the first to really try to visualise and strengthen your […]
Categories: Authentication, DMARC, General
EMDAY 2019 in Paris
2019/04/30 by Liselotte Rooseboom.
2 days devoted to email marketing with French experts at EMDAY 2019. One of Postmastery’s team members will be present in Paris at the EMDAY 2019 on May 16th and 17th. If you would like to have a chat with him at EMDAY, please schedule a meeting here.
Categories: General