@girish
I'm having I think the same issue. I have server logs on the recieving side I can share as well. here are the details
Here is my setup:
me@SenderServer.com to send the test mail
me@DestinationServer.com is the final destination address we are forwarding to and where server logs are recovered from
me@MyCloudron.io is set to forward to
me@DestinationServer.com
MyCloudron.io which has ip 1.1.1.1 is the cloudron install
NOTE: 1.1.1.1 is fake. The real IP is a dynamically changing IP address from the ISP which is likely spam blocked. Prior to setting up the STMP relay server no outgoing emails would work as they would be blocked on the destination server due to ISP's all adding dynamic ip blocks to spam lists by default. After setting up the relay I was able to send as
me@MyCloudron.io, and that still works, just forwarding does not work. I suspect, or wonder, if sogo and rainloop are properly using the cloudron configured smtp relay?
MyCloudron.io is setup to forward mail through a
posteo.de server using a paid account. This works fine for sending and recieving using
me@MyCloudron.io directly but
me@MyCloudron.io forward to
me@DestinationServer.com fails.
The forwarding was setup using sogo.
Error on MyCloudron.io
{
"ts": 1609960307783,
"type": "bounce",
"direction": "outbound",
"uuid": "860650A1-438F-48AB-9CFE-79A20126D25A.1",
"mailFrom": "<>",
"rcptTo": [
"<me@SenderServer.com>"
],
"details": {
"message": "554 kundenserver.de (mxeue112) Nemesis ESMTP Service not available No SMTP service IP address is black listed. For explanation visit https://www.ionos.com/help/index.php?id=2425&ip=1.1.1.1&c=bl"
}
}
logs from DestinationServer.com that appear when the cloudron server attempts to forward to me@DestinationServer.com:
2021-01-06 19:11:47 no host name found for IP address 1.1.1.1
2021-01-06 19:11:47 H=(MyCloudron.io) [1.1.1.1] sender verify fail for <SRS0=0ad3=GK=SenderServer.com=me@DestinationServer.com>: Unrouteable address
==> /var/log/exim4/rejectlog <==
2021-01-06 19:11:47 H=(MyCloudron.io) [1.1.1.1] sender verify fail for <SRS0=0ad3=GK=SenderServer.com=me@DestinationServer.com>: Unrouteable address
==> /var/log/exim4/mainlog <==
2021-01-06 19:11:47 H=(MyCloudron.io) [1.1.1.1] X=TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256 CV=no F=<SRS0=0ad3=GK=SenderServer.com=me@DestinationServer.com> rejected RCPT <me@DestinationServer.com>: Sender verify failed
==> /var/log/exim4/rejectlog <==
2021-01-06 19:11:47 H=(MyCloudron.io) [1.1.1.1] X=TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256 CV=no F=<SRS0=0ad3=GK=SenderServer.com=me@DestinationServer.com> rejected RCPT <me@DestinationServer.com>: Sender verify failed
==> /var/log/exim4/mainlog <==
2021-01-06 19:12:22 TLS error on connection from (MyCloudron.io) [1.1.1.1] (recv): The TLSconnection was non-properly terminated.
