You need to provide the full configuration otherwise we can't troubleshoot.

Given that I use the relay src feature on a daily basis and that my mail 
infrastructure relies on it,
I would venture to say the problem is with your setup.

Gilles

13 août 2019 10:28 mailingli...@dotbit.ro a écrit:

> Hello,
> 
> I have one machine doing packet forwarding, nat and smtpd.
> I have two internet providers and I want to receive mails on em2 and send 
> mails on em1.
> 
> dotbit# uname -a
> OpenBSD dotbit.ro 6.5 GENERIC.MP#3 amd64
> 
> I receive on em2 with no problems using the following:
> listen on em2 port 25 tag EXT
> match tag EXT for domain <domains> from any action "deliver_local"
> 
> but I seem to fail to send from em1:
> action "relay" relay src "86.34.153.250"
> 
> dotbit# ifconfig em1
> em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> lladdr 0c:c4:7a:51:6d:c2
> description: Group 3 down. Romtelekom HP router port3
> index 2 priority 0 llprio 3
> groups: egress
> media: Ethernet autoselect (100baseTX full-duplex)
> status: active
> inet 86.34.153.250 netmask 0xfffffff8 broadcast 86.34.153.255
> 
> dotbit# ifconfig em2
> em2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> lladdr 0c:c4:7a:51:6d:c3
> description: Group 3 up. Orange. Connect to GE1 on Huawei router.
> index 3 priority 0 llprio 3
> groups: egress
> media: Ethernet autoselect (1000baseT full-duplex)
> status: active
> inet 109.166.210.10 netmask 0xfffffffc broadcast 109.166.210.11
> 
> dotbit# route -n show|grep default 
> default 109.166.210.9 UGS 12 3936306 - 8 em2 
> default 86.34.153.249 UGS 0 0 - 12 em1 
> 
> Note: The em1 route has lower priority.
> 
> If I send an e-mail using this setup to gmail I receive an e-mail from ip 
> 109.166.210.10 (em2)
> 
> If I have a "pass out on em1" and send mail using the above setup I get:
> Aug 13 07:54:24 dotbit smtpd[15641]: ee7e33319534dd82 mta connecting
> address=smtp://98.137.159.26:25 host=mta-v42.mail.vip.ne1.yahoo.com
> Aug 13 07:54:24 dotbit smtpd[15641]: ee7e33319534dd82 mta error 
> reason=Connection failed:
> Permission denied
> Aug 13 07:54:24 dotbit smtpd[15641]: smtp-out: Disabling route 86.34.153.250 
> <-> 98.137.159.26
> (mta-v42.mail.vip.ne1.yahoo.com) for 15s
> 
> but it I also have "pass out on em2" the mail gets sent from em2 
> (109.166.210.10).
> 
> I do not need a solution for me personally, bit I think it should be possible 
> to chose where to
> send from.
> I only need this is temporary fix until my new provider assigns me reverse 
> dns,
> then I can send and receive from the same route.
> 
> Thanks for smtpd, Dimitrios

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