Login or Register to Ask a Question and Join Our Community


Red Hat

Sendmail migration help

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems Linux Red Hat Sendmail migration help
# 1  
Old 03-15-2017
Sendmail migration help
I am currently trying to move away from an old email server to Google mail for business. As email is critical for everyone in the company we are trying to do it gradually to minimise the risk of emails getting lost or something going wrong.



Our existing email server uses sendmail 8.13.8 as the MTA. We also have MX records for the domain pointing to this old email server. We have a google mail inbox but it currently receives nothing as there aren't any MX records pointing at it.



We are hoping to set up some sort of forwarding system so that our users can be migrated gradually. The idea would be that when someone sends a user an email, the mail server would either deliver it locally (as it currently does) or forward it to the google mail server (that has no MX record) to be delivered there depending on whether the user has been flagged for migration. We could then gradually test the system with a few users and give them a chance to copy their existing mailboxes over to the new storage before we finally switch the MX record over to Google.


Does anyone have any idea if this is possible and how to go about doing it?
If anyone has any better ideas about doing this migration I'd also love to hear them.


Thanks in advance!
James
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Solaris

Clarifying sendmail configuration - sendmail-client offline

Hi all, I have read about sendmail running as 2 separate process. 1 as a MSP, and the other as the real daemon or MTA. In my current configuration, the sendmail-client is disabled. Both submit.cf and sendmail.cf are left as default untouch I do not specified any mailhost... (3 Replies)
Discussion started by: javanoob
3 Replies

2. AIX

AIX - FC Switch migration, SAN Migration question!

I'm New to AIX / VIOS We're doing a FC switch cutover on an ibm device, connected via SAN. How do I tell if one path to my remote disk is lost? (aix lvm) How do I tell when my link is down on my HBA port? Appreciate your help, very much! (4 Replies)
Discussion started by: BG_JrAdmin
4 Replies

3. UNIX for Advanced & Expert Users

Sendmail questions, SCO 5.0.6 sendmail 8.11.0

I am running SCO 5.0.6 and using sendmail 8.11.0 and having issues with smtp authentication. When trying to send mail the following message will kick back. (reason: 530 5.7.1 Authentication required) 530 5.7.1 Authentication required Not sure what needs to be tweeked in sendmail.cf but I... (1 Reply)
Discussion started by: ziggy6
1 Replies

4. AIX

NIMADM migration 5.3 to 7.1

I am attempting this for the first time having in the past used a DVD migrate. Unfortunately in this instance I do not have this luxury. The migration starts correctly and creates the alt_inst disk and them proceeds to create the filesystems and exports them. First failure was the filesystem... (3 Replies)
Discussion started by: johnf
3 Replies

5. UNIX for Dummies Questions & Answers

Help with information on DB migration.

Dear Admin, I am new to unix platform,please i need you to tell me and send me useful tools and advice on how to migrate an oracle DB release2 to a unix platform. your urgent responce would be appreciated. Regards, Adejuwon Odugbesi. (1 Reply)
Discussion started by: adejuwon
1 Replies

6. Solaris

Migration Solaris 5.8 to 10

Hi, it is necessary to make the migration of Solaris 5.8 for Solaris 10, would like to know which the best form to execute this task, if to be able to say me where I can arrange some manual that helps me to make this task. Thanks :o (2 Replies)
Discussion started by: bruno_a_correia
2 Replies

7. Shell Programming and Scripting

migration from hp-ux11.11 to hp-ux 11.23

Hi all Can any one guide me what changes may occur with this OS version migration. If you could give some links, that would be helpful too. Regards, Ranj (2 Replies)
Discussion started by: ranj@chn
2 Replies

8. UNIX for Advanced & Expert Users

Migration

Hi all, Would appreciate advise on my situation. Currently server A is in production. Server A takes in data from Server X, does some processing and send to server Y. We are going to develop a different system in server B, something like an enhanced version of A. Server A will be retired once... (2 Replies)
Discussion started by: new2ss
2 Replies

9. UNIX for Advanced & Expert Users

migration

hi, is there any tool that i can use to update my scripts (SH scripts) form Unix to linux. please mention any useful websites. thanx in advance (2 Replies)
Discussion started by: omran
2 Replies

10. UNIX for Dummies Questions & Answers

Migration

Is it possible to migrate a UNIX program and use it in a NetWare or Windows 2000 network? I have a client that must have one of those two operating systems for the new program that they want. However, they've been using an older UNIX program for about 7 years and they want to be able to refer to... (7 Replies)
Discussion started by: refram
7 Replies
Login or Register to Ask a Question

LEARN ABOUT LINUX

git-check-mailmap

GIT-CHECK-MAILMAP(1)						    Git Manual						      GIT-CHECK-MAILMAP(1)

NAME

       git-check-mailmap - Show canonical names and email addresses of contacts

SYNOPSIS

       git check-mailmap [options] <contact>...

DESCRIPTION

       For each "Name <user@host>" or "<user@host>" from the command-line or standard input (when using --stdin), look up the person's canonical
       name and email address (see "Mapping Authors" below). If found, print them; otherwise print the input as-is.

OPTIONS

       --stdin
	   Read contacts, one per line, from the standard input after exhausting contacts provided on the command-line.

OUTPUT

       For each contact, a single line is output, terminated by a newline. If the name is provided or known to the mailmap, "Name <user@host>" is
       printed; otherwise only "<user@host>" is printed.

MAPPING AUTHORS

       If the file .mailmap exists at the toplevel of the repository, or at the location pointed to by the mailmap.file or mailmap.blob
       configuration options, it is used to map author and committer names and email addresses to canonical real names and email addresses.

       In the simple form, each line in the file consists of the canonical real name of an author, whitespace, and an email address used in the
       commit (enclosed by < and >) to map to the name. For example:

	   Proper Name <commit@email.xx>

       The more complex forms are:

	   <proper@email.xx> <commit@email.xx>

       which allows mailmap to replace only the email part of a commit, and:

	   Proper Name <proper@email.xx> <commit@email.xx>

       which allows mailmap to replace both the name and the email of a commit matching the specified commit email address, and:

	   Proper Name <proper@email.xx> Commit Name <commit@email.xx>

       which allows mailmap to replace both the name and the email of a commit matching both the specified commit name and email address.

       Example 1: Your history contains commits by two authors, Jane and Joe, whose names appear in the repository under several forms:

	   Joe Developer <joe@example.com>
	   Joe R. Developer <joe@example.com>
	   Jane Doe <jane@example.com>
	   Jane Doe <jane@laptop.(none)>
	   Jane D. <jane@desktop.(none)>

       Now suppose that Joe wants his middle name initial used, and Jane prefers her family name fully spelled out. A proper .mailmap file would
       look like:

	   Jane Doe	    <jane@desktop.(none)>
	   Joe R. Developer <joe@example.com>

       Note how there is no need for an entry for <jane@laptop.(none)>, because the real name of that author is already correct.

       Example 2: Your repository contains commits from the following authors:

	   nick1 <bugs@company.xx>
	   nick2 <bugs@company.xx>
	   nick2 <nick2@company.xx>
	   santa <me@company.xx>
	   claus <me@company.xx>
	   CTO <cto@coompany.xx>

       Then you might want a .mailmap file that looks like:

	   <cto@company.xx>			  <cto@coompany.xx>
	   Some Dude <some@dude.xx>	    nick1 <bugs@company.xx>
	   Other Author <other@author.xx>   nick2 <bugs@company.xx>
	   Other Author <other@author.xx>	  <nick2@company.xx>
	   Santa Claus <santa.claus@northpole.xx> <me@company.xx>

       Use hash # for comments that are either on their own line, or after the email address.

GIT

       Part of the git(1) suite

Git 1.8.5.3							    01/14/2014						      GIT-CHECK-MAILMAP(1)