[yonrg]

Right. When I changed my vps to another hoster, I totally forgot how much trouble it was to get a good reputation in the beginning.

But it was really not that much work again. Just unfortunate, because one big Mail provider just discarded instead of rejecting my mails. After this was settled, everything works quite nice again. Important to me is keeping spf, dkim, dmarc and now also mts up to date. See mail-checker.com e.g.

I still wonder though, why some big mail providers do not do dkim/dmarc? I happen to realize this when I started to fight spam and gave incoming mails without dkim/dmarc a high spam score.

[benmanns]

Do you mean a different domain? mail-checker.com Looks like a parked spam domain.

[neilv]

I love https://www.mail-tester.com/

One time, mail-tester.com found that my paid personal email hoster had moved my SMTP server to a new IP address without updating the anti-spam sender mechanisms. (You had one job, people.) When email is how you keep in touch with a lot of friends, and occasionally make new consulting contacts, that's relatively costly.

[yonrg]

Oh you are right. Sorry for the fauxpas. It is mail-tester.com as corrected below. Thanks for mentioning