E-Mail Spooling Service - What IP addresses does ETRN deliver e-mail from?
What IP addresses does ETRN deliver e-mail from?
The ETRN systems deliver queued e-mail from the following networks:
-
IPv4:
CIDR Network / Netmask Range 157.97.105.169/32
157.97.105.170/32
157.97.105.171/32157.97.105.169/255.255.255.255
157.97.105.170/255.255.255.255
157.97.105.171/255.255.255.255157.97.105.169 - 157.97.105.171 162.254.27.97/32
162.254.27.98/32
162.254.27.99/32162.254.27.97/255.255.255.255
162.254.27.98/255.255.255.255
162.254.27.99/255.255.255.255162.254.27.97 - 162.254.27.99 204.62.28.0/24 204.62.28.0/255.255.255.0 204.62.28.4 - 204.62.28.250 -
IPv6:
CIDR 2620:7a:0:2800::/64
We Answer Your Questions: FAQ
Q: What is the maximum e-mail attachment size?
A: The ETRN.com e-mail servers do not limit the size of individual e-mail attachments. The ETRN.com e-mail servers do impose a 400 MB maximum total message size limit. Individual customers can choose a smaller message size limit. We can also customize the handling of "over-sized" e-mails. Please contact us to discuss your specific needs. A couple of important facts:
1. Attachments are typically encoded in what is called Base64[1]. As a result, the actual length of MIME-compliant Base64-encoded binary data is usually about 137% of the original file size.
2. E-mails often contain both plain text and HTML components. This also increases the overall size of the e-mail.