On 10/07/2024 16:35, bob prohaska wrote:
On Wed, Jul 10, 2024 at 12:02:20AM +0200, Dag-Erling Smørgrav wrote:
bob prohaska <f...@www.zefox.net> writes:
It looks like all I need is SPF and TLS, [...]
You also need DKIM.
Going by: https://support.google.com/a/answer/81126?hl=en
If I'm reading right, that requirement applies only to
senders of more than 5000 mails per day. I'm sending
one or two, at most.
Do I misunderstand something
Thanks for writing!
I maintain a small mail server with about dozen of active domains.
Average traffic is under 50 outgoing messages per day but Gmail refused
messages until I set SPF and DKIM for each domain. If there was ever a
traffic of more than 5000 messages per day it was many years ago due to
hacked sender account sending spam.
So I think it is very easy to be blocked by Gmail. It is not about
domain, but by the IP of the server I think.
YMMV
Miroslav Lachman