Hi, > Probably that domain was involved in mass mailing in the past (mostly > unsolicited). I don’t see other reason for which they needed mailgun in spf. > Send an email to gmail, from another source which works perfectly and include > the www.domain.com <http://www.domain.com/> in the body. If still goes to > spam, the domain is blacklisted in gmail.
The SPF record was mine, I used Maildrop to send some test mails. I highly doubt isogram.nl <http://isogram.nl/> is on any blacklist, I tried what you suggested, the mail didn’t get flagged as spam. Also, the domain appears on no blacklist as far as I can tell. > Personally I think that the most likely explanation is that Google does > not have enough history of the IP address. The more (genuine) mail you > send from an IP address, and the longer you do it for, the less likely > the email will be classed as spam. Yeah, there appears to be no other option, since the config seems OK. > You might like to check your IP addresses at the site below. It's not > Google, but it will give you a general idea as to how your IP addresses > are seen by receiving mail servers: > > https://senderscore.org/lookup.php <https://senderscore.org/lookup.php> I did that, it didn’t report much of anything. I guess they don’t have any data on the IP. -- - Tiemo