• API documentation
• Query documentation
• Python Regular Expressions Match function
• Definitions
• Create an alias for a target
• Update an alias to point to a new target
• Delete an alias regardless of the target
• Remove aliases from a specified target
• Delete all of a user's aliases
• Display aliases
• Bulk delete aliases
• Bulk reassign aliases
• Determine if an address is a user, user alias, group or group alias

• https://developers.google.com/admin-sdk/directory/reference/rest/v1/users.aliases
• https://developers.google.com/admin-sdk/directory/reference/rest/v1/groups.aliases

• https://developers.google.com/admin-sdk/directory/v1/guides/search-users

See Collections of Items

<DomainName> ::= <String>(.<String>)+
<DomainNameList> ::= "<DomainName>(,<DomainName>)*"
<DomainNameEntity> ::=
        <DomainNameList> | <FileSelector> | <CSVFileSelector>
<EmailAddress> ::= <String>@<DomainName>
<EmailAddressList> ::= "<EmailAddress>(,<EmailAddress>)*"
<EmailAddressEntity> ::= <EmailAddressList> | <FileSelector> | <CSVkmdSelector> | <CSVDataSelector>
        See: https://github.com/taers232c/GAMADV-XTD3/wiki/Collections-of-Items
<UniqueID> ::= id:<String>

gam create alias|aliases <EmailAddressEntity> user|group|target <UniqueID>|<EmailAddress>
        [verifynotinvitable]

<EmailAddressEntity> are the aliases, <EmailAddress> is the target.

The verifynotinvitable option causes GAM to verify that the alias email address being created is not that of an unmanaged account; if it is, the command is not performed.

To allow Robert to also receive mail as Bob:

gam create alias bob[@yourdomain.com] user robert[@yourdomain.com]

The existing alias is deleted and a new alias is created.

gam update alias|aliases <EmailAddressEntity> user|group|target <UniqueID>|<EmailAddress>
        [notargetverify] [waitafterdelete <Integer>]

<EmailAddressEntity> are the aliases, <EmailAddress> is the target.

By default, GAM makes additional API calls to verify that the target email address exists before updating the alias; if you know that the target exists, you can suppress the verification with `notargetverify.

GAM updates an alias to point to a new target by deleting the alias and then recreates the alias pointing to the new target. Unfortunately, if these commands are executed back-to-back; Google generates the Update Failed: Duplicate error. Now, GAM waits 2 seconds between the delete and the insert which seems to eliminate the problem. If the problem persists, use the option waitafterdelete <Integer> to increase the wait time to a maximum of 10 seconds.

gam delete alias|aliases [user|group|target] <EmailAddressEntity>

<EmailAddressEntity> are the aliases.

gam remove alias|aliases <EmailAddress> user|group <EmailAddressEntity>

<EmailAddress> is the target, <EmailAddressEntity> are the aliases.

gam <UserTypeEntity> delete aliases

Display a specific alias.

gam info alias|aliases <EmailAddressEntity>

Display selected aliases.

gam print aliases [todrive <ToDriveAttribute>*]
        ([domain|domains <DomainNameEntity>] [(query <QueryUser>)|(queries <QueryUserList>)]
         [limittoou <OrgUnitItem>])
        [user|users <EmailAddressList>] [group|groups <EmailAddressList>]
        [select <UserTypeEntity>]
        [aliasmatchpattern <RegularExpression>]
        [shownoneditable] [nogroups] [nousers]
        [onerowpertarget] [delimiter <Character>]
        [suppressnoaliasrows]
        (addcsvdata <FieldName> <String>)*

By default, group and user aliases in all domains in the account are selected; these options allow selection of subsets of aliases:

• domain|domains <DomainNameEntity> - Limit aliases to those in the domains specified by <DomainNameEntity>
  • You can predefine this list with the print_agu_domains variable in gam.cfg.
• (query <QueryUser>)|(queries <QueryUserList>) - Print aliases for users/groups that match a query; each query is run against each domain
• limittoou <OrgUnitItem> - Print aliases for users in the specified <OrgUnitItem>
• user|users <EmailAddressList> - Print aliases for users in <EmailAddressList
• select <UserTypeEntity> - Print aliases for users in <UserTypeEntity>
• group|groups <EmailAddressList> - Print aliases for groups in <EmailAddressList
• aliasmatchpattern <RegularExpression> - Print aliases that match a pattern
• nogroups - Print only user aliases
• nousers - Print only group aliases

By default, the CSV output has three columns: Alias,Target,TargetType; if a target has multiple aliases, there will be multiple rows, one per alias.

Use shownoneditable to list non-editable alias email addresses; these are typically outside of the account's primary domain or subdomains. This adds the column NonEditableAlias.

Specifying onerowpertarget changes the three columns to: Target,TargetType,Aliases; all aliases for the target are listed in the Aliases column. If shownoneditable is specified, there will be a fourth column NonEditableAliases with a list of non-editable aliases.

By default, the aliases in a list are separated by the csv_output_field_delimiter' from gam.cfg`.

• delimiter <Character> - Separate aliases in a list with <Character>

Specifying both onerowpertarget and suppressnoaliasrows causes GAM to not display any targets that have no aliases.

Add additional columns of data from the command line to the output

• addcsvdata <FieldName> <String>

When multiple domains are specified and a query/queries are specified, an API call is made for each domain/query combination.

$ gam print aliases domains school.org,students.school.org queries "'email:admin*','email:test*'"
Getting all Users that match query (domain=school.org, query="email:admin*"), may take some time on a large Google Workspace Account...
Got 3 Users: admin@school.org - admindirector@school.org
Getting all Users that match query (domain=school.org, query="email:test*"), may take some time on a large Google Workspace Account...
Got 20 Users: testusera@school.org - testuserx@school.org
Getting all Users that match query (domain=students.school.org, query="email:admin*"), may take some time on a large Google Workspace Account...
Got 1 User: admin@students.school.org - admin@students.school.org
Getting all Users that match query (domain=students.school.org, query="email:test*"), may take some time on a large Google Workspace Account...
Got 1 User: testuser1@students.school.org - testuser1@students.school.org
Alias,Target,TargetType
...

You can bulk delete aliases as follows; use (query <QueryUser>)|(queries <QueryUserList>) and aliasmatchpattern <RegularExpression> as desired.

gam redirect csv ./OldDomainAliases.csv print aliases aliasmatchpattern ".*@olddomain.com" onerowpertarget suppressnoaliasrows
gam redirect stdout ./DeleteAliases.txt multiprocess redirect stderr stdout csv ./OldDomainAliases.csv gam remove aliases "~Target" "~TargetType" "~Aliases"

You can bulk reassign aliases as follows. Make a CSV file ReassignAliases.csv with two columns: OldTarget,NewTarget. From this CSV file, all of the aliases for the users in the OldTarget column will be listed with an additional column showing the NewTarget.

gam redirect stdout ./GetAliases.txt multiprocess redirect stderr stdout redirect csv ./ReassignAliases.csv gam print aliases user "~OldTarget" addcsvdata NewTarget "~NewTarget"

If an OldTarget's aliases are to be reassigned to more than the one NewTarget, edit ReassignAliases.csv and make changes as required.

gam redirect stdout ./ReassignAliases.txt multiprocess redirect stderr stdout csv ReassignAliases.csv gam update alias "~Alias" user "~NewTarget"

gam whatis <EmailItem> [noinfo] [noinvitablecheck]

The first line of output is: <TypeOfEmailItem>: <EmailItem>

There is additional output based on <TypeOfEmailItem>:

• User - gam info user <EmailItem>
• Group - gam info group <EmailItem>
• User Alias - gam info alias <EmailItem>
• Group Alias - gam info alias <EmailItem>
• User Invitation - gam info userinvitation <EmailItem>

The noinfo argument suppresses the additional output.

The noinvitablecheck argument suppresses the user invitation check to avoid exceeding quota limits when checking a large number of addresses.

The return code is set based on <TypeOfEmailItem>:

• User - 20
• User Alias - 21
• Group - 22
• Group Alias - 23
• User Invitation - 24
• Unknown - 59