Re: [exim] Callout issue.

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著者: Renaud Allard
日付:  
To: Dave H
CC: exim-users
題目: Re: [exim] Callout issue.


Dave H wrote:
> Oops!
> My apologies all, I'm not on any tech support mailing lists and wasn't aware of the etiquette.
>
> As a key:
> Company a = dcarbon8.com
> Company b = co2e.com
> Company c = angryfish.com
> Company d = espeed.com
>
>     SMTP error from remote mail server after RCPT TO:<BBaldridge@???>:
>     host smtp-gw.x-mailer.co.uk [213.253.170.46]:
>     550-Recipient verification failed (recipient) Callout verification failed:
>     550 550 #5.1.0 Rejected by bounce verification.

>
> despite dcarbon8's email being managed by angryfish, the servers are owned by dsvr.com
> smtp-gw.x-mailer.co.uk is, I believe, the link to the outside world from dsvr.
>
> The telnet sessions I attempted were.
>
> telnet mail-ip.cantor.com 25
> Trying 148.106.1.97...
> Connected to mail-ip.cantor.com (148.106.1.97).
> Escape character is '^]'.
> 220 ***************************
> HELO dcarbon8.com
> 250 mail-ip-in.cantor.com
> MAIL FROM:<>
> 250 sender <> ok
> RCPT TO:<AJakubowski@???>
> 550 #5.1.0 Rejected by bounce verification.
>
> I then tried
>
> telnet mail-ip.cantor.com 25
> Trying 148.106.1.97...
> Connected to mail-ip.cantor.com (148.106.1.97).
> Escape character is '^]'.
> 220 ***************************
> HELO dcarbon8.com
> 250 mail-ip-in.cantor.com
> MAIL FROM:<carl@???>
> 250 sender <carl@???> ok
> RCPT TO:<AJakubowski@???>
> 250 recipient <AJakubowski@???> ok
> DATA
> 354 go ahead
> Subject:Test from dave@???
> Please email dave@??? if this is received
>
> .
> 250 ok: Message 21723617 accepted
> QUIT
> 221 mail-ip-in.cantor.com
>
> mail-ip.cantor.com is the first mx record for co2e.com
>
> Apologies for the masking of details, Thankyou Marc for making me aware of this.
>


Well, espeed.com uses non RFC compliant mail servers as they don't
accept bounces. But to solve your problem, you should maybe only do a
recipient callout on domains you own or relay mail for.

deny
domains = +local_domains : +relay_to_domains
!verify = recipient/callout=60s

instead of only
deny
!verify = recipient/callout=60s

Or you can also use a recipient callout using the sender name
(/use_sender), but I don't really see the point of doing a recipient
callout on foreign domains.