What is SPF and what is it used for?
DuckDuckGo announced on their blog that they are going to launch an email protection service.
Despite the fact, that the global spam rate is decreasing, in 2020 47% of all sent emails were considered as spam. Different types of spam filters protect users from spam emails.
The german email platforms GMX and web.de, which belong both to 1&1, have a new service.
A german portal for consumer protection made a test of mail apps . The result was, that most mail apps are not safe. They read mail contents, send the password of the mail address to their servers, gather user data or gain access to the addresses of the senders and receivers of the mails. Only 3 of 20 apps were okay: Fairemail, K-9 Mail and Pep Mail.
In the year 2020 there were 306 billion emails sent and received each day. It is predicted that this number will rise up to 376 billion mails daily in 2025. www.statista.com
If you want to check your list before the send-out, you can make address checks first. Either you use a service or you will have to program a little.
If you have several ips you might want to consider grouping them. This helps getting a good average deliverability.
When there was no email traffic on an ip for about an month, the ip has to be warmed up before sending large amounts of mails with it. That means, starting slowly with some mails to engaged receivers (who opened and clicked mails before). Goal is to get a good reputation at the ISPs.