I have just setup my own Exim SMTP server to send emails
But I experience something strange when I sent out newsletters.. Alot of times when I send through Exim, mails are delivered with a delay up to an hour after it was actually sent??
Lets say I send a mail
09:41. The mail is sent but is received by the recipient at
10:25.. But the timestamp on the mail is still
Why is that??
When the mails were sent they where all sent in the same "keep-alive" SMTP (TCP) connection (~1000 mails was sent in a few minutes)
Then alot of people will not see my mail because it ends up between old and read mails because the timestamp is up one hour old when the mail hits the inbox
2019-10-16 09:41:21 1iKdvt-0002cc-8A <= email@example.com H=smtp.example.com (example.com) [2a01:4f8:140:43a1::2] P=esmtpsa X=TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128 CV=no A=plain_server:example S=6921 id=W7EVMeu2x4beoTgU8bfdbVw3B2xdt2sVtEOQEcQb7E@example.com 2019-10-16 09:41:21 1iKdvt-0002cc-8A no immediate delivery: more than 10 messages received in one connection
How to send the emails instant instead of putting them in a queue?