TrustFax mailserver delay for emailed fax

Discontinued Products Trustfax (online faxing)
1

I generated an email with an attached PDF and sent it to the trustfax server. Thus far, it has failed to appear in my TrustFax account. Looking at my mailserver logs, I see the following messages:

Apr 24 20:35:44 kim postfix/smtp[27715]: E28FE25E9AD6: enabling PIX workarounds: disable_esmtp delay_dotcrlf for mail.trustfax.com[216.126.201.91]:25
Apr 24 20:38:44 kim postfix/smtp[27715]: E28FE25E9AD6: to=5124635713@trustfax.com, relay=mail.trustfax.com[216.126.201.91]:25, delay=842, delays=661/0.12/0.21/180, dsn=4.4.2, status=deferred (conversation with mail.trustfax.com[216.126.201.91] timed out while sending message body)

The entire email is ~200KB in size, with the PDF attachment comprising ~155KB of that. In other words, it’s a pretty small file. Why the timeout? Is there a problem with TrustFax’s Cisco equipment? Earlier versions of that FIXUP SMTP protocol on the PIX firewall are notoriously buggy, you know…

2

The FIXUP SMTP protocol was adjusted on the PIX to eliviate the timeout that you experienced.

3

Fantastic! Thanks for the response. I was able to send a fax via email, so it appears to indeed be fixed.