SRS not functioning properly

Hello folks, I'm at a loss here. We have switched to an external smarthost as emailservice, maintaining our own emailserver and dealing with blacklisting and such became too much of a hassle, so since our vps provider offered their own mailservice, we started using that. However, they give no support whatsoever on SRS and since we've got quite a few forwarders, this proved to be quite a big problem. I dont quite get how SRS is supposed to work, it combines the accountname from one emailadress with the domain of another, is this supposed to work like that? Mail sent from account_a@hotmail.com[/EMAIL] to account_b@domain_b.com (which is on our vps, vps.example.nl) which has a forwarder set up to account_c@gmail.com[/EMAIL], this is what happens:


LOG: MAIN
  cwd=/usr/local/cpanel/whostmgr/docroot 4 args: /usr/sbin/exim -v -M 1brj80-0001h1-Dr
delivering 1brj80-0001h1-Dr
Connecting to vps.transip.email [149.210.xxx.xxx]:587 ... connected
  SMTP<< 220 submission4.mail.transip.nl ESMTP
  SMTP>> EHLO vps.example.nl
  SMTP<< 250-submission4.mail.transip.nl
         250-PIPELINING
         250-SIZE 37033449
         250-STARTTLS
         250-ENHANCEDSTATUSCODES
         250-8BITMIME
         250 DSN
  SMTP>> STARTTLS
  SMTP<< 220 2.0.0 Ready to start TLS
  SMTP>> EHLO vps.example.nl
  SMTP<< 250-submission4.mail.transip.nl
         250-PIPELINING
         250-SIZE 37033449
         250-AUTH PLAIN LOGIN
         250-AUTH=PLAIN LOGIN
         250-ENHANCEDSTATUSCODES
         250-8BITMIME
         250 DSN
  SMTP>> AUTH LOGIN
  SMTP<< 334 VXNlcm5hbWU6
  SMTP>> ************************************
  SMTP<< 334 UGFzc3dvcmQ6
  SMTP>> ************************
  SMTP<< 235 2.7.0 Authentication successful
  SMTP>> MAIL FROM: SIZE=8219
  SMTP>> RCPT TO:
  SMTP>> DATA
  SMTP<< 250 2.1.0 Ok
  SMTP<< 250 2.1.5 Ok
  SMTP<< 354 End data with .
  SMTP>> writing message and terminating "."
  SMTP<< 421 4.7.0 No valid 'x-transip-mail-auth' DNS record found for 'hotmail.com'. Please see https://www.transip.eu/question/110000764 for more information. (3spttD4k0BznTWf)
  SMTP>> QUIT
LOG: MAIN
  == account_c@gmail.com (account_b@domain_b.com)  R=remoteserver_route T=remoteserver_relay defer (-46) H=vps.transip.email [149.210.149.126]: SMTP error from remote mail server after end of data: 421 4.7.0 No valid 'x-transip-mail-auth' DNS record found for 'hotmail.com'. Please see https://www.transip.eu/question/110000764 for more information. (3spttD4k0BznTWf)

So mainly this part: SMTP>> MAIL FROM: SIZE=8219 Is it supposed to mix those accounts/domains? Anyway, it still think its coming from hotmail, instead of our server, and it gets bounced, even though SRS is enabled. This happens for all forwarded mail on our server. Pleas help! What am i supposed to do? Theres very little documentation to be found on the matter, in cpanel its just a checkbox to enable, possibly more could be done in the advanced editor, but like i said, i cant find anything on it. So please advice! The sooner the better, we got a lot of complaining clients here Thanks in advance

Zoop

October 05, 2016 12:01

Theres also another problem with system mails sent from the server itself (at the moment, these are mainly information about the other mails being bounced) that wont be sent. The system mails are also sent over the smarthost and thus expect spf/dkim on the hostname (which cant be easily done on cpanel and is discouraged to do) so they also get bounced. Is there a way to make sure that system and php mail function are excluded from the smarthost, and let the server itself handle it?

cPanelMichael

October 10, 2016 22:54

so since our vps provider offered their own mailservice, we started using that.

Hello, Could you provide some more details about this? Are you using a custom mail server on another server, or does it integrate with cPanel in some way? Thank you.

Patrick Gerrits

January 27, 2017 09:26

Hi, i'm using the same mail service and also having the same problem. Mail forwarding is not working due to SPF issues. To enable the transip mail service we needed to do the following: set smarthost support to: * vps.transip.email add following rules to the advanced exim editor: ROUTERSTART remoteserver_route: driver = manualroute transport = remoteserver_relay domains = !+local_domains route_list = * vps.transip.email TRANSPORTSTART remoteserver_relay: driver = smtp port = 587 hosts_require_auth = $host_address hosts_require_tls = $host_address AUTH remoteserver_login: driver = plaintext public_name = LOGIN hide client_send = : XXXXXXXXXXXXXX

February 02, 2017 16:02

To enable the transip mail service we needed to do the following:

Hello, The mail service provider you are using does not appear to support SRS per their documentation at:

SRS not functioning properly

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