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:<[EMAIL PROTECTED]>:
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:<[EMAIL PROTECTED]>
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:<[EMAIL PROTECTED]>
250 sender <[EMAIL PROTECTED]> ok
RCPT TO:<[EMAIL PROTECTED]>
250 recipient <[EMAIL PROTECTED]> ok
DATA
354 go ahead
Subject:Test from [EMAIL PROTECTED]
Please email [EMAIL PROTECTED] 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=60sOr 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.
smime.p7s
Description: S/MIME Cryptographic Signature
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