Re: Mail rejected with 5.7.1 HDR9020 Date header is in the distant future

2020-01-07 Thread William C
You can use MIME::Lite (or something similiar) to build a message including body and headers with wrong date format then forward the message to Postfix for testing. regards. on 2020/1/7 16:47, lists wrote: Is there some easy way to send email with the wrong date to test this? We'll other tha

anyone familiar with 1and1's email setting?

2020-01-06 Thread William C
Hallo, I tried to add SPF on 1and1 domain, got the help page: https://www.ionos.com/help/domains/configuring-mail-servers-and-other-related-records/using-an-spf-record-to-prevent-spam/ It doesn't state clearly what are their official SPF records, but give an example: v=spf1 include:_spf.perf