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After adding useXForward: true to server options, we started getting the following error when certain email services send to our server:
C: XFORWARD PROTO=ESMTP HELO=redacted.qualified.domain IDENT=REDACTED SOURCE=REMOTE
XFORWARD HELO name resolved as "0"
S: 250 OK
C: MAIL FROM:<REDACTED> BODY=7BIT
S: 503 Error: send HELO/EHLO first
It looks like this is caused by the following line, where it tries to interpret the HELO as a number, which then later on overrides this.hostNameAppearsAs to a falsey value:
After adding
useXForward: true
to server options, we started getting the following error when certain email services send to our server:It looks like this is caused by the following line, where it tries to interpret the HELO as a number, which then later on overrides
this.hostNameAppearsAs
to a falsey value:smtp-server/lib/smtp-connection.js
Line 1084 in 427cb7a
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