<div>
<div class="content wysiwyg-content">
I have a Sendmail server that accepts email for my domain, it then relays those emails to another sendmail server within my network that has a dynamic IP and is not always online.<br />
<br />
For this reason I would like the retry time before failure to be increased to 7 days.<br />
<br />
How can I achieve this?
</div>
</div>


I have a Sendmail server that accepts email for my domain, it then relays those emails to another sendmail server within my network that has a dynamic IP and is not always online.

For this reason I would like the retry time before failure to be increased to 7 days.

How can I achieve this?

How do I increase the mail - retry before fail delay for Sendmail being used as an email relay server?

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.

Email Software

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.